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【单选题】
假设检验时,下列检验水准下,犯II型错误概率最小的是:A.
α=0.01
B.
α=0.05
C.
α=0.10
D.
α=0.15
E.
α=0.20
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【单选题】— , how can I get to the bus station? —Go down this road and turn right at the second crossing. You'll find it easily.
A.
By the way
B.
On the way
C.
In a word
【简答题】完形填空。 A few days ago I got on a bus and took a window seat. The bus 1 was by the seashore and I was watching the sea waves. After a few minutes the bus got to the next 2 . A boy and a girl got on the ...
【单选题】The bus ____ down by the side of the road and the driver tried to repair it.
A.
breaks
B.
has broken
C.
was breaking
D.
broke
【单选题】Stepping carelessly off the pavement, he was knocked down by a bus.
A.
简单句
B.
并列句
C.
复合句
【单选题】听力原文：M: What happened to you? You are so late. W: The bus I took broke down in front of the hospital and I had to walk from there. Q: Why was the woman so late? (14)
A.
She went to the hospital on his way.
B.
She was held up by the traffic in front of the hospital.
C.
Hex car had gone wrong and she took a bus.
D.
She walked half of her way to work instead of riding on a bus.
【简答题】三、完形填空(共10小题,每小题2分,计20分) It was at 7:20 am on August 8, 2017. Chen Yong was driving a traveling bus to Jiuzhaigou as usual. _1_ about 14 hours’ ride, the bus finally arrived at the scenic spot(景区). Al...
【单选题】下列关于瓦斯爆炸的条件，说法正确的是（）
A.
煤矿井下有瓦斯的地点就会发生瓦斯爆炸
B.
瓦斯爆炸通常发生在回风巷中，进风巷道中不会发生瓦斯爆炸
C.
采掘工作面，瓦斯浓度超过1.5%，就会发生爆炸
D.
瓦斯爆炸的三个条件同时具备时，就会发生爆炸
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