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【判断题】
电路中,原正常工作的电阻,发生开路时,电流为0,所以两端的电压也为0。A.
正确
B.
错误
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【简答题】矿井水的来源包括（）、（）、（）、（）、（）。
【简答题】标准圆柱齿轮,齿顶高系数h*数值为( )。
【单选题】-I think I am __________ to go back home. -Not really. Mr. Wu, you'd better stay in hospital for another 2 days. [ ]
A.
so good
B.
good enough
C.
so well
D.
well enough
【单选题】听力原文：M: I think you'd better find another partner. I love table tennis, but I don't think I am improving. W: Look Paul, it's still too early to quit. Nobody expects you to be a superstar. What does th...
A.
The man didn't practice hard enough.
B.
The man should find a new partner.
C.
The man should not give up.
D.
The man should not dream of being a superstar.
【单选题】— Where do you _____ I go this evening? — I think you'd better stay at home instead of going anywhere. [ ]
A.
suppose
B.
suggest
C.
mean
D.
want
【简答题】矿井水的来源包括______、______、______、______、______。
【单选题】听力原文：M: I think you'd better find another partner. I love table tennis but I don't think I am improving. W: Look, Paul, it's still too early to quit, nobody expects you to be a superstar. Just keep go...
A.
The man didn't practice hard enough.
B.
The man should find a new partner.
C.
The man should not give up.
D.
The man should not dream of being a superstar.
【简答题】矿井水的来源包括大气降水、含水层水、断层水、地表水、（）
【多选题】矿井瓦斯来源包括哪些( )
A.
在煤层与围岩内赋存并能涌入到矿井的气体。
B.
矿井生产过程中生成的气体。
C.
井下空气与煤、岩、矿物、支架和其它材料之间的化学或生物化学反应生成的气体。
D.
放射性物质蜕变过程生成的或地下水放出的放射性惰性气体氡(Rn)及惰性气体氦(He)。
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