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【单选题】
汽车润滑系统的作用有( )
A.
清洁、润滑、密封
B.
防锈蚀、液压、减震缓冲作用
C.
清洁、润滑、密封、冷却、防锈蚀、液压、减震缓冲作用
D.
润滑、密封、冷却、防锈蚀、液压
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参考答案:
举一反三
【简答题】听句子,选出恰当的答语。 1. A. I want to mend it. B. I feel sick. C. I'd like a cup tea. 2. A. This way, please. B. Come in, please. C. Let' go 3. A. It took her ten hours. B. She had a lot of money. C. She spent...
【单选题】下列有关高级脂肪酸的叙述中错误的是
A.
都不溶于水
B.
都为固态
C.
都比水轻
D.
其钠盐是肥皂的主要成分
【简答题】Woman: Hello, sir, how may I help you?Man: I’d like to have a table __________, some quiet.Woman: Sure, follow me please. Here you are, sir.Man: May I have the __________?Woman:Oh yes, certainly. Here...
【简答题】为什么用水和肥皂就可以去污呢?因为普通的肥皂,它是主要成分是高级脂肪酸的钠盐和钾盐,这些盐分子,一部分能溶于水,叫“亲水
【判断题】无机盐的主要功能是构成机体组织,调节生理机能,维持正常代谢。
A.
正确
B.
错误
【单选题】— Would you like something to eat? — _______. I am not hungry at all. [     ]
A.
You are welcome
B.
No, please do
C.
No, thanks
D.
Here you are
【判断题】无机盐的主要功能是构成机体组织,调节生理机能,维持正常代谢。()
A.
正确
B.
错误
【单选题】-Tomorrow is my birthday, would you like to come? -______.
A.
Yes, I would
B.
Sure, I’d like to
C.
Yes, please
D.
No, I can’t.
【单选题】Salesgirl: Good morning, miss. Can I help you? Mary: Yes, I'd like half a kilo oranges, please. Salesgirl: ______. Anything else? Mary: No, thank you.
A.
These oranges are for you
B.
Give you the oranges
C.
There you are
D.
Here are you
【单选题】When I saw her walki n g along the str ee t deep at nig h t, I was rea lly a la r med by her co m pl e xi o n . She looked so ____ just like a ghost.
A.
g entle
B.
general
C.
simple
D.
hideous
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