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【单选题】
在有水流的水道内航行时,在舵角相同的条件下,则( )。I.在流速和静水船速不变时,顺流时舵效比逆流航行时差;II.在流速和静水船速不变时,顺流或逆流航行时,舵力以及舵力转船力矩是一样的;III.在流速和静水船速不变时,逆流时舵效比顺流航行时差;IV.在流速和静水船速不变时,顺流或逆流航行时,舵力以及舵力转船力矩是不一样的。
A.
Ⅰ
B.
Ⅰ,Ⅱ
C.
Ⅲ
D.
Ⅲ,Ⅳ
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【单选题】操作良好和冶炼条件好的大高炉,焦炭负荷一般为( )。
A.
2.5～3.0
B.
3.5～4.5
C.
1.0～1.5
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【简答题】配伍禁忌(incompatibility)
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【简答题】配伍禁忌（ ）
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【单选题】Choose the most suitable heading from the list a-d for paragraph 2
A.
The shellfish have a long history in the rock and many different kinds are known.
B.
The first animals with true backbones were the fishes, first known in the rocks of 375 million years ago. About 300 million years ago, the amphibians, the animals able to live both on land and in water, appeared. They were giant, sometimes 8 feet long, and many of them lived in the swampy pools in which our coal seam, or layer, or formed. The amphibians gave rise to the reptiles and for nearly 150 million years, these were the principal forms of life on land, in the sea, and in the air.
C.
The earliest animals whose remains have been found were all very simple kinds and lived in the sea. Later forms are more complex, and among these are the sea-lilies, relations of the starfishes, which had long arms and were attached by a long stalk to the sea bed, or to rocks.
D.
When an animal dies, the body, its bones, or shell, may often be carried away by streams into lakes or the sea and there get covered up by mud. If the animal lived in the sea its body would probably sink and be covered with mud. More and more mud would fall upon it until the bones or shell become embedded and preserved.
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【多选题】建筑工程中常用的气硬性胶凝材料有( )。
A.
水泥
B.
石灰
C.
石膏
D.
水玻璃
查看完整题目与答案
【单选题】Choose the most suitable heading from the list a-d for paragraph 3
A.
The shellfish have a long history in the rock and many different kinds are known.
B.
The first animals with true backbones were the fishes, first known in the rocks of 375 million years ago. About 300 million years ago, the amphibians, the animals able to live both on land and in water, appeared. They were giant, sometimes 8 feet long, and many of them lived in the swampy pools in which our coal seam, or layer, or formed. The amphibians gave rise to the reptiles and for nearly 150 million years, these were the principal forms of life on land, in the sea, and in the air.
C.
The earliest animals whose remains have been found were all very simple kinds and lived in the sea. Later forms are more complex, and among these are the sea-lilies, relations of the starfishes, which had long arms and were attached by a long stalk to the sea bed, or to rocks.
D.
When an animal dies, the body, its bones, or shell, may often be carried away by streams into lakes or the sea and there get covered up by mud. If the animal lived in the sea its body would probably sink and be covered with mud. More and more mud would fall upon it until the bones or shell become embedded and preserved.
查看完整题目与答案
【简答题】什么是配伍禁忌？
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【单选题】Choose the most suitable heading from the list a-d for paragraph 4
A.
The shellfish have a long history in the rock and many different kinds are known.
B.
The first animals with true backbones were the fishes, first known in the rocks of 375 million years ago. About 300 million years ago, the amphibians, the animals able to live both on land and in water, appeared. They were giant, sometimes 8 feet long, and many of them lived in the swampy pools in which our coal seam, or layer, or formed. The amphibians gave rise to the reptiles and for nearly 150 million years, these were the principal forms of life on land, in the sea, and in the air.
C.
The earliest animals whose remains have been found were all very simple kinds and lived in the sea. Later forms are more complex, and among these are the sea-lilies, relations of the starfishes, which had long arms and were attached by a long stalk to the sea bed, or to rocks.
D.
When an animal dies, the body, its bones, or shell, may often be carried away by streams into lakes or the sea and there get covered up by mud. If the animal lived in the sea its body would probably sink and be covered with mud. More and more mud would fall upon it until the bones or shell become embedded and preserved.
查看完整题目与答案
【简答题】建筑工程中常用的气硬性胶凝材料有____________、__________、____________ 。
查看完整题目与答案
【简答题】属于配伍禁忌的配伍关系是
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相关题目：
【单选题】操作良好和冶炼条件好的大高炉,焦炭负荷一般为( )。
A.
2.5～3.0
B.
3.5～4.5
C.
1.0～1.5
查看完整题目与答案
【简答题】配伍禁忌(incompatibility)
查看完整题目与答案
【简答题】配伍禁忌（ ）
查看完整题目与答案
【单选题】Choose the most suitable heading from the list a-d for paragraph 2
A.
The shellfish have a long history in the rock and many different kinds are known.
B.
The first animals with true backbones were the fishes, first known in the rocks of 375 million years ago. About 300 million years ago, the amphibians, the animals able to live both on land and in water, appeared. They were giant, sometimes 8 feet long, and many of them lived in the swampy pools in which our coal seam, or layer, or formed. The amphibians gave rise to the reptiles and for nearly 150 million years, these were the principal forms of life on land, in the sea, and in the air.
C.
The earliest animals whose remains have been found were all very simple kinds and lived in the sea. Later forms are more complex, and among these are the sea-lilies, relations of the starfishes, which had long arms and were attached by a long stalk to the sea bed, or to rocks.
D.
When an animal dies, the body, its bones, or shell, may often be carried away by streams into lakes or the sea and there get covered up by mud. If the animal lived in the sea its body would probably sink and be covered with mud. More and more mud would fall upon it until the bones or shell become embedded and preserved.
查看完整题目与答案
【多选题】建筑工程中常用的气硬性胶凝材料有( )。
A.
水泥
B.
石灰
C.
石膏
D.
水玻璃
查看完整题目与答案
【单选题】Choose the most suitable heading from the list a-d for paragraph 3
A.
The shellfish have a long history in the rock and many different kinds are known.
B.
The first animals with true backbones were the fishes, first known in the rocks of 375 million years ago. About 300 million years ago, the amphibians, the animals able to live both on land and in water, appeared. They were giant, sometimes 8 feet long, and many of them lived in the swampy pools in which our coal seam, or layer, or formed. The amphibians gave rise to the reptiles and for nearly 150 million years, these were the principal forms of life on land, in the sea, and in the air.
C.
The earliest animals whose remains have been found were all very simple kinds and lived in the sea. Later forms are more complex, and among these are the sea-lilies, relations of the starfishes, which had long arms and were attached by a long stalk to the sea bed, or to rocks.
D.
When an animal dies, the body, its bones, or shell, may often be carried away by streams into lakes or the sea and there get covered up by mud. If the animal lived in the sea its body would probably sink and be covered with mud. More and more mud would fall upon it until the bones or shell become embedded and preserved.
查看完整题目与答案
【简答题】什么是配伍禁忌？
查看完整题目与答案
【单选题】Choose the most suitable heading from the list a-d for paragraph 4
A.
The shellfish have a long history in the rock and many different kinds are known.
B.
The first animals with true backbones were the fishes, first known in the rocks of 375 million years ago. About 300 million years ago, the amphibians, the animals able to live both on land and in water, appeared. They were giant, sometimes 8 feet long, and many of them lived in the swampy pools in which our coal seam, or layer, or formed. The amphibians gave rise to the reptiles and for nearly 150 million years, these were the principal forms of life on land, in the sea, and in the air.
C.
The earliest animals whose remains have been found were all very simple kinds and lived in the sea. Later forms are more complex, and among these are the sea-lilies, relations of the starfishes, which had long arms and were attached by a long stalk to the sea bed, or to rocks.
D.
When an animal dies, the body, its bones, or shell, may often be carried away by streams into lakes or the sea and there get covered up by mud. If the animal lived in the sea its body would probably sink and be covered with mud. More and more mud would fall upon it until the bones or shell become embedded and preserved.
查看完整题目与答案
【简答题】建筑工程中常用的气硬性胶凝材料有____________、__________、____________ 。
查看完整题目与答案
【简答题】属于配伍禁忌的配伍关系是
查看完整题目与答案
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