问题
单项选择题
气缸余隙容积的大小直接影响（）
A.活塞的运动
B.气阀的动作
C.空压机的效率
答案
参考答案：C
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气缸余隙容积的大小直接影响（）
A.活塞的运动
B.气阀的动作
C.空压机的效率
参考答案：C
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| Bill: Great! Tomorrow is the first day of our vacation. Jimmy: That's right! What are you doing for the vacation? Bill: I'm 1____ to Tibet in China. I have a lot of Chinese friends there. I am going 2____ 3_____ about Chinese, I 4____ to communicate 5____ with my Chinese friends. How about you? Jimmy: I'm 6____ for Hong Kong tomorrow. Last night my friend 7____ me 8____ to his big birthday party 9____ the phone. Bill: Is your sister going with you? Jimmy: 10____ not. She is going to learn to play the piano. Bill: I have to go now. Have a good time! Jimmy: You, too. | ||||
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