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【判断题】
Operating aircraft in instrument flight rules doesn’t need clear visual check.A.
正确
B.
错误
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反馈参考答案：
举一反三
【判断题】双级蒸汽压缩制冷循环中的两个节流阀，一个把冷凝压力下的制冷剂降压降温成中温中压进入中间冷却器，常称为辅助节流阀；一个把冷凝压力降温降压成蒸发压力向蒸发器供液，常称为主节流阀。（ ）
A.
正确
B.
错误
【简答题】线性进给指令G01 格式: G01 X _Y_Z_A_F_ 其中,X、Y、Z、A、为 ,
【单选题】When the United States imposed a VER on cars from Japan
A.
Japanese firms were the recipients of the rents from the quantitative restriction.
B.
Japanese car companies responded by lowering the U.S. prices of their cars.
C.
Japanese car companies responded by lowering the quality of the cars they sold in the U.S.
D.
It was implemented by the U.S. levying a 25% tariff on cars from Japan.
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