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【单选题】
% [" n/ I$ }' I 工业上,通常以( )作为衡量煤灰熔融性的主要指标。
A.
变形温度 DT
B.
软化温度 ST
C.
半球温度H T
D.
流动温度 FT
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【判断题】楼梯的休息平台是连接两个楼梯段的部分,休息平台的宽度不得小于楼梯段的宽度,以保证人流通过平台时,不致拥挤或堵塞。()
A.
正确
B.
错误
【单选题】楼梯梯段的宽度与平台宽度的关系是()
A.
梯段的宽度<平台宽度
B.
梯段的宽度>平台宽度
C.
梯段的宽度≤平台宽度
D.
梯段的宽度≥平台宽度
【单选题】Chen Guangbiao says he ______ all his money to charities  when he dies. [     ]
A.
leaves
B.
left
C.
will leave
D.
would leave
【单选题】_______ today, he would get there by Saturday. [     ]
A.
If he leaves
B.
Was he leaving
C.
Would he leave
D.
Were he to leave
【简答题】计算图中的电压U,分析各元件的功率状态,并讨论其功率平衡。
【单选题】楼梯段面宽度大于()。
A.
1m
B.
1.1m
C.
1.2m
D.
1.35m
【单选题】______ today, he could get there by Friday.
A.
If he leaves
B.
Was he leaving
C.
Were he to leave
D.
Would he have left
【单选题】______today, be would get there by Friday.
A.
Were he leave
B.
Was be leaving
C.
Were he to leave
D.
If he leaves
【单选题】民用建筑疏散楼梯的平台净宽度应当( c )。
A.
不小于楼梯段的净宽度
B.
不大于楼梯段的净宽度
C.
不小于楼梯段的净宽度且不小于1.10m
D.
等于楼梯段的净宽度
【单选题】______today, he would get there by Friday.
A.
Were he leave
B.
Was he leaving
C.
Were he to leave
D.
If he leaves
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