问题
单项选择题
以下什么装置不是改善换档品质的装置（）。
A.节流孔
B.蓄能器
C.占空比电磁阀
D.开关型电磁阀
答案
参考答案：D
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以下什么装置不是改善换档品质的装置（）。
A.节流孔
B.蓄能器
C.占空比电磁阀
D.开关型电磁阀
参考答案：D
| 补全对话。 | |
| (M---Meimei B-Bill) B: Hello, Meimei. M: Hello, Bill. Where are you going? B: _____ (1). M: The cinema? But I'm afraid it's closed now. It's open only from 4: 00 p. m. to 9: 00 p. m. B: _____ (2)! M: Is there anything new on show? B: Yes, Chicken, Run! I have got the VCDs. B: Have you? M: Yes. My uncle bought me from New York last week. B: _____ (3)? M: Sure. I'm free this morning. How about coming to my home and watching it right now? B: _____ (4). Thank you, Meimei! M: _____ (5).
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