气缸体和气缸盖裂纹的检查一般采用（）法。_爱下问搜题

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问题填空题

气缸体和气缸盖裂纹的检查一般采用（）法。

答案

参考答案：水压试验

完形填空

I can still remember when I met my best friend．She had just moved into the neighborhood and her grandmother brought her down to 11  me．I hid behind my mother and she hid behind her grandmother， 12 to look at each other．Soon we lost the    13  and started playing with each other．
In the 7^th grade，I first lost touch with her．She was 14 family problems and I deserted her to be with the "cooler people" because they knew she had been a   15       person．None of my new friends liked her as much as I did because they knew she had 16 ．However，every summer we could always sit at each other’s house and watch soap operas，and talk about all the boys we liked．
It was last year when I noticed the problem．I guess I was too devoted in high school to   17 she needed someone there for her．Anyway，she made a new best friend and so did I．Then 1 didn’t know why，but she started cutting herself!
She then was diagnosed（诊断）with clinical（临床的）depression．At first，1 was very   18 ，but we still stayed in   19 ．I wanted to be there for her since her new best friend basically   20 her and people were calling her   21 ，and I knew I still cared about her like a sister.
Yesterday she came to me and said：“I never knew what a best friend was until you were the only person that would stop me cutting．I 22 you so much，and you didn’t even know you were   23 me．”
We both cried．And I guess a kind of   24 from my life so far is never to give up on your friends．Even if they aren’t as cool as others，or people think they are crazy，they need someone there．If you desert them，you will only be 25 yourself. So if a friend needs you, and you care for them, you can never desert them.

B．getting through

C．going through

B．shortcomings

D．disabilities

B．considerate

选择题

下面关于功和能的叙述正确的是（　　）

A．物体在平衡力作用下，它的机械能一定保持不变

B．作用力和反作用力做功的绝对值一定相等

C．合外力对物体做功为零，物体的动能一定不变

D．合外力对物体做功为零，物体的动能可能改变