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【简答题】
在已敷设的煤气管道下面,可以修建与煤气管道无关的建筑物,但不应存放易燃、易爆物品。
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【判断题】Linux中文件系统要挂载后才能使用。
A.
正确
B.
错误
【简答题】--Have great changes taken place in your village? --Yes. A new school was_________ in the village last year.
【单选题】口腔颌面部间隙的正确定义为:
A.
正常情况下颌面部各组织之间存在的间隙
B.
颌面部肌肉和涎腺之间存在的间隙
C.
正常情况下颌面部各组织之间解剖结构上的潜在间隙
D.
颌面部各间隙之间无沟通
E.
颌面部间隙感染不易扩散
【单选题】—Have great changes taken place in your village? —Yes. A new school was ______ in the village last year.
A.
held up
B.
set up
C.
sent up
D.
brought up
【简答题】“Have great changes taken place in your village?” “Yes, A new school was ______ in the village last year.” A.held up B.set up C.sent up D.brought up
【单选题】In the last two hundred years there have been great changes in the method of production of goods. This is now also true of the building industry; for mechanization has been introduced. System building...
A.
the latter uses ready-made internal features
B.
panels are cast in a level position
C.
the former is used to build walls and floors while the latter to construct bathrooms or bedrooms
D.
the former is more expensive than the latter
【简答题】There have been great changes in the lives of women. During the twentieth century ,there was an unusual shortening of the time of a woman’s life spent in caring for children. A woman marrying at the e...
【单选题】爆炸极限一般采用可燃气体或蒸汽在空气混合物中占有的()来表示。
A.
体积百分比
B.
重量百分比
C.
体积千分比
D.
重量千分比
【单选题】二极管全波整流电路,所获得的直流电压平均值为输入整流装置的交流电压有效值的( )。
A.
0.9
B.
0.45
C.
0.5
D.
0.725
【判断题】气体混合物的爆炸极限一般可用可燃气体或蒸气在混合物中的重量百分比来表示。()
A.
正确
B.
错误
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