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【单选题】
对炉窑砌筑材料描述错误的是( )
A.
炉窑砌筑材料在某些情况下可以使用轻质耐火砖
B.
砌筑材料的化学成分与所用砖的化学成分必须适应
C.
矾土水泥应该与硅酸盐水泥配合使用
D.
炉窑砌筑材料不能使用普通粘土砖
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举一反三
【单选题】用同一平面上的三个支承点对工件的平面进行定位,能限制其( )自由度
A.
一个移动一个转动
B.
两个移动一个转动
C.
一个移动两个转动
D.
两个移动两个转动
【单选题】passage four:questions 36~40 are based on the following passage. Some houses are designed to be smart. Others have smart designs. An example of the second type of house won an Award of Excellence from...
A.
to be easily reinforced
B.
to look smarter in design
C.
to meet stricter building standards
D.
to be designed in the shape of cubes
【单选题】In "a father he is obliged to listen to", who does "he" refer to?
A.
the father
B.
the son
C.
a student
D.
a tourist
【单选题】用三个支承点对工件的平面定位,能限制 自由度。
A.
三个移动
B.
三个转动
C.
一个移动、两个转动
【单选题】在Altium Designe编辑窗口中,上下移动屏幕快捷键是()。
A.
鼠标滚轮
B.
Shift+鼠标滚轮
C.
Ctrl+鼠标滚轮
D.
ALT+鼠标滚轮
【单选题】Our task is______a comprehensive plan to, meet those needs.
A.
to designing
B.
design
C.
designed
D.
to design
【单选题】The idea of public works projects as a device to prevent or control depression was designed as a means of creating job opportunities for unemployed workers and as a 'pump priming' device to aid busine...
A.
the work projects of the former were carded out by the Federal Government______
B.
the government subsidized private industry
C.
the number of unemployed was reduced
D.
the former was government's first attempt to end hardship due to unemployment
【单选题】用三个支承点对工件的平面定位,能限制()个自由度。
A.
三个移动
B.
三个转动
C.
一个移动、两个转动
D.
两个移动、一个转动
【单选题】The new bridge ________ by the end of last month.
A.
has been designed
B.
had been designed
C.
was designed
D.
would be designed
【简答题】People are being invited to sit down to eat with their neighbors in a nationwide lunch party designed to promote community spirit. The Big Lunch is the idea of the Eden Project in Cornwall. It aims to...
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