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【单选题】
压力控制阀的共同特点是利用( )与弹簧力相平衡的原理进行工作。A.
液压力
B.
重力
C.
反作用力
D.
离心力
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反馈参考答案：
举一反三
【单选题】How does Robert Feldman see little white lies?
A.
They do harm to both people and the society.
B.
They are more acceptable than habitual lies.
C.
They are necessary in the social relationships.
D.
They are good-intentioned and thus harmless.
【单选题】How does the white woman like the heat?
A.
She thinks it is great.
B.
She thinks it is comfortable.
C.
She can't stand it.
【单选题】听力原文：W: Look! The white T-shirt looks very nice. M: Does it? I prefer that green one. Which T-shirt would the woman like to buy?
A.
The green one.
B.
The red one.
C.
The white one.
【单选题】听力原文：W: How do you like the old black and white movies of the forties, and fifties compared with the modem ones? M: For their time, the movies of the forties and fifties were excellent. But try to com...
A.
They are better than the modem movies.
B.
There is more technology in them.
C.
The technology in them cannot be compared with that of modern ones.
D.
They are excellent to us now.
【单选题】How does Sylvia’s feel when the man mentions the white heron for the first time?
A.
Anguished and excited.
B.
Nervous and scared.
C.
Nervous and excited.
D.
Anguished and scared.
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