减小压强的方法有______；______．_爱下问搜题

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问题填空题

减小压强的方法有______；______．

答案

根据公式p=

F

S

可知，减小压强的办法有：在受力面积不变时减小压力或在压力不变时增大受力面积，也可以同时减小压力和增大受力面积．

故答案为：在受力面积不变时减小压力；在压力不变时增大受力面积．

完形填空

With a hat by his feet，a blind boy sat on the steps of a building. He held up a sign which said，" I ' m blind, please help. "
Only a few people put    1   in the hat. A man was walking by. He    2   some coins into the hat. He then turned the sign    3 . wrote some words, put the sign back and left.
Soon the hat began to fill up. A lot more people   4   to give money to the blind boy.　　That afternoon the man came to see    5  things were. The boy recognized his footsteps (脚步声) and asked, "Were you the one who    6  my sign this morning? What did you write?"
The man said, "I only wrote the truth. I said what you said but in a   7 way. "What he had written was," Today is a beautiful day,   8  I cannot see it. "
Both the   9  told people that the boy was blind. But the first sign simply 　10　people to help by throwing some money into the   11  . The second one, however, told people that they were able to enjoy the 12  of the day, but the boy couldn't    13   he was blind.
There are at least two lessons we can learn   14  this story. First, be thankful for what
you have. Someone else has less. Help them if you can. 15 , be creative. Think differently.
　There is always a better way !

单项选择题

病者因劳累汗出感寒，出现发热恶寒，腹满头痛身痛，大便已4日未行，舌红苔黄腻，脉浮而滑数，但饮食如故，治当选用（）

A.厚朴三物汤

B.大柴胡汤

C.大承气汤

D.柴胡桂枝汤

E.厚朴七物汤