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【多选题】
下列物质中,可以用高锰酸钾返滴定法测定的是()
A.
Cu2+
B.
Ag+
C.
CrO72-
D.
MnO2
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【单选题】It was 3:12 a.m. when nine-year-old Glenn Kreamer awoke to the smell of burning. Except for the crackling of flames somewhere below there was not a sound in the two-storey house at Baldwin, Long Islan...
A.
He wanted to find out what was happening.
B.
He was worded about his mother's safety.
C.
He wanted to save his sister and brother.
D.
He went to see if his father had come back from work.
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【多选题】以下关于串联和并联导电模型的描述正确的是
A.
岩石成多层结构,若电阻率测量方向垂直于多层介质,则应采用串联导电模型
B.
岩石中存在裂缝,若裂缝方向与电阻率测量方向近似平行,应采用并联导电模型,将岩石基质和裂缝并联
C.
实际岩心内矿物、孔隙结构、流体分布等较复杂,难以直接用串并联模型表征,在实际应用中常以串、并联模型表征岩石电阻率的上下限
D.
泥质砂岩储层,若泥质主要以内衬式存在,应采用并联模型考虑地层水和泥质的导电性
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【单选题】发动机活塞销产生异响的原因之一是( )。
A.
活塞销与活塞销座孔配合间隙过大
B.
连杆弯曲变形
C.
连杆轴承盖的连接螺纹松动
D.
活塞销与活塞销座孔配合间隙过小
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【简答题】English Renaissance The English Renaissance was a cultural and artistic movement in England dating from the late 15th to the early 17th century. It is associated with the pan-European Renaissance that...
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【单选题】when was it built?
A.
In the 13th century.
B.
In the 14th century.
C.
In the 13th or 14th century.
D.
In the 16th century.
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【单选题】Excel中统计符合某一条件的单元格数目,使用函数( )。
A.
COUNTIF
B.
IF
C.
COUNT
D.
SUMIF
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【多选题】以下关于地层水电阻率的表述正确的有
A.
地层水导电能力是用单位时间内所搬运的离子数量来衡量的
B.
溶液含盐量越高,离子迁移速度越快,则溶液导电能力越强
C.
随温度升高,溶液中盐的溶解度增加,离子数目增多,溶液黏度降低,溶液电阻率降低
D.
无论含有什么盐类的地层水都可以换算成等效NaCl溶液
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【单选题】I wonder why Helen is late. She _____ the bus.
A.
couldn't have missed
B.
may have missed
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【简答题】 M: And where is this? F: These photos are from the Taj Mahal in India. We went there about ten years ago for our ____1____. M: Was it romantic. F: Yeah. The Taj Mahal was a very romantic place. The ...
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【简答题】阅读短文，根据短文内容回答问题。 It was early evening on September 14th. Glen James, a homeless man was passing by a store inBoston when he happened upon a black bag. To see whose the bag is, Glen opened it only to f...
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相关题目：
【单选题】It was 3:12 a.m. when nine-year-old Glenn Kreamer awoke to the smell of burning. Except for the crackling of flames somewhere below there was not a sound in the two-storey house at Baldwin, Long Islan...
A.
He wanted to find out what was happening.
B.
He was worded about his mother's safety.
C.
He wanted to save his sister and brother.
D.
He went to see if his father had come back from work.
查看完整题目与答案
【多选题】以下关于串联和并联导电模型的描述正确的是
A.
岩石成多层结构,若电阻率测量方向垂直于多层介质,则应采用串联导电模型
B.
岩石中存在裂缝,若裂缝方向与电阻率测量方向近似平行,应采用并联导电模型,将岩石基质和裂缝并联
C.
实际岩心内矿物、孔隙结构、流体分布等较复杂,难以直接用串并联模型表征,在实际应用中常以串、并联模型表征岩石电阻率的上下限
D.
泥质砂岩储层,若泥质主要以内衬式存在,应采用并联模型考虑地层水和泥质的导电性
查看完整题目与答案
【单选题】发动机活塞销产生异响的原因之一是( )。
A.
活塞销与活塞销座孔配合间隙过大
B.
连杆弯曲变形
C.
连杆轴承盖的连接螺纹松动
D.
活塞销与活塞销座孔配合间隙过小
查看完整题目与答案
【简答题】English Renaissance The English Renaissance was a cultural and artistic movement in England dating from the late 15th to the early 17th century. It is associated with the pan-European Renaissance that...
查看完整题目与答案
【单选题】when was it built?
A.
In the 13th century.
B.
In the 14th century.
C.
In the 13th or 14th century.
D.
In the 16th century.
查看完整题目与答案
【单选题】Excel中统计符合某一条件的单元格数目,使用函数( )。
A.
COUNTIF
B.
IF
C.
COUNT
D.
SUMIF
查看完整题目与答案
【多选题】以下关于地层水电阻率的表述正确的有
A.
地层水导电能力是用单位时间内所搬运的离子数量来衡量的
B.
溶液含盐量越高,离子迁移速度越快,则溶液导电能力越强
C.
随温度升高,溶液中盐的溶解度增加,离子数目增多,溶液黏度降低,溶液电阻率降低
D.
无论含有什么盐类的地层水都可以换算成等效NaCl溶液
查看完整题目与答案
【单选题】I wonder why Helen is late. She _____ the bus.
A.
couldn't have missed
B.
may have missed
查看完整题目与答案
【简答题】 M: And where is this? F: These photos are from the Taj Mahal in India. We went there about ten years ago for our ____1____. M: Was it romantic. F: Yeah. The Taj Mahal was a very romantic place. The ...
查看完整题目与答案
【简答题】阅读短文，根据短文内容回答问题。 It was early evening on September 14th. Glen James, a homeless man was passing by a store inBoston when he happened upon a black bag. To see whose the bag is, Glen opened it only to f...
查看完整题目与答案
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