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I often wondered why the people of Pompeii did not run away before the volcano erupted. As it turns out, they didn’t know what a volcano was. In fact, the Romans did not even have a word for “volcano”. 小题1: They had no idea that a volcano would destroy them. Starting from 20 August AD 79, there were some earthquakes near the volcano. 小题2: 然而,没有一个人很注意这些. Then, on 24 August, the mountain explored, pouring out a cloud of ash. It was also moving quite fast. Most of the human remains from Pompeii have been found on the roads away from the city. 小题3: The people were fleeing the city for their lives. However, they could not get away fast enough, 小题4: so they were buried beneath the ash. A famous Roman scholar happened to be on a boat nearby when all of this happened, so he went to the area to see what was going on. Even he didn’t know what a volcano was. 小题5: 不幸的是他也死于这场灾难中.
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举一反三
【单选题】以下疾病不属于血管外溶血的是
A.
自身免疫性溶血
B.
地中海贫血
C.
新生儿溶血
D.
PNH
E.
异常血红蛋白病
【判断题】4092702 矩形截面杆扭转时,其最大切应力发生在长边中点,方向与长边垂直。
A.
正确
B.
错误
【判断题】多肽链结构中,一个氨基酸残基就是一个肽单位。( )
A.
正确
B.
错误
【简答题】本文提出的观点对我们有什么启示?
【判断题】多肽链结构中,一个氨基酸残基就是一个肽单位。
A.
正确
B.
错误
【简答题】电动机调速方式与拖动的负载性质为什么要匹配?不匹配有什么问题?
【多选题】僰人悬棺主要集中在哪两个地方?
A.
麻塘坝
B.
秭归县
C.
苏麻湾
D.
磨坪乡
【判断题】生产准备及开办费=设计定员×生产准备费指标(元/人)。
A.
正确
B.
错误
【多选题】材料、长度相同的实心圆截面轴与空心圆截面轴发生扭转变形,下列结论正确的是( )
A.
两轴的重量相同时,空心比实心轴变形小
B.
强度相同时,空心比实心轴节省材料
C.
强度相同时,实心比空心轴节省材料
D.
两轴的重量相同时,实心比空心轴变形小
【判断题】实心轴与空心轴强度相同时,空心轴的重量比实心轴轻,困此机械设计中广泛使用了空心轴。 ( )
A.
正确
B.
错误
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