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【简答题】
Peter was a small boy. He lived with his parents in a small house near some hills. The people there were all poor. One night it was very dry and windy. When everybody was asleep, Peter suddenly heard some noise. It came out from the kitchen ( 厨房). He got up and walked to the kitchen. He found that the wood beside the stove (火炉) was burning . There was no water tap (水龙头) in the house , so he could not put out (扑灭) the fire . He shouted loudly to wake up everyone in the house. Then he ran out of his house and knocked on the doors of many houses to wake the people up. They all left their houses quickly. At last the fire was put out by the firemen. Many houses were burnt. But nobody was hurt in the fire.
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皮皮学刷刷变学霸
举一反三
【单选题】混凝土分层浇筑时,在振捣上一层时,应插入下层中()cm左右,以消除两层之间的接缝
A.
2.5
B.
5
C.
7.5
D.
10
【单选题】振捣上一层时应插入下层( ),以消除两层间的接缝。
A.
5cm
B.
6cm
C.
10cm
【判断题】插入式振捣器振捣时,振捣上一层混凝土时应插入下层50mm,以消除两层间的接缝。
A.
正确
B.
错误
【简答题】常见的水循环故障有哪些?
【判断题】如果数列 有界,那么数列 必定有极限 。
A.
正确
B.
错误
【判断题】插入式振捣器振捣时,振捣上一层混凝土时应插入下层30mm,以消除两层间的接缝。
A.
正确
B.
错误
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网球肘
B.
先天性高肩胛症
C.
肱二头肌长腱滑脱
D.
冈上肌腱断裂
【判断题】插入式振捣器振捣时,振捣上一层混凝土时应插入下层30mm,以消除两层间的接缝。
A.
正确
B.
错误
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A.
乙烯利
B.
萘乙酸
C.
吲哚丁酸
D.
赤霉素
【判断题】有界数列必定有极限。
A.
正确
B.
错误