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【单选题】
道岔号码愈大，导曲线半径愈()。A.
大
B.
小
C.
平稳
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反馈参考答案：
举一反三
【单选题】听力原文：M: Excuse me. Have you been waiting long? W: About ten minutes. M: Did you notice whether the number seven bus has gone by? W: Not while I've been standing here. I'm waiting for the number seven ...
A.
Rainy and cool.
B.
Windy.
C.
Hot and dry.
D.
Cold and dry.
【单选题】听力原文：M: Excuse me. Have you been waiting long? W: Twenty minutes already. M: Did you notice whether the No. 7 bus has passed by? W: Not while I've been standing here. I'm also waiting for the No. 7 bu...
A.
She is waiting for the man.
B.
She is waiting for her mother.
C.
She is waiting for a bus.
【单选题】听力原文：M: Excuse me. Have you been waiting long? W: About ten minutes. M: Did you notice whether the number seven bus has gone by? W: Not while I've been standing here. I'm waiting for the number seven ...
A.
She is waiting for the man.
B.
She is waiting for her mother
C.
She is waiting for a bus.
D.
She is waiting for it to stop mining.
【简答题】螺纹牙型是指通过螺纹轴线的剖切平面截切而得的螺纹轮廓形状。常用的有三角形、 、矩形、锯齿形螺纹。其中 螺纹使用最广泛。
【单选题】听力原文：M: Excuse me. Have you been waiting long? W: About ten minutes. M: Did you notice Whether the number seven bus has gone by? W: Yes, it is. I wish that it would rain and cool off. M: Me too. This ...
A.
She is waiting for the man.
B.
She is waiting for her mother.
C.
She is waiting for a bus.
D.
She is waiting for it to stop raining.
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