The man __________ you talked just now is a worker.
A. who
B. whom
C. to whom
D. to who
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The man ____ you are going to make friends is my father's neighbour.
A. with whom
B. when
C. to whom
D. which
The man ____ visited our school yesterday is from London.
A. which
B. whom
C. when
D. who
轴受到两个大小相等、方向相反、作用线和轴线平行的两个力就会发生轴向拉伸或压缩。
A. 对
B. 错
轴受到两个力，它们大小相等、方向相反、作用线和轴线重合，轴会发生轴向拉（压）。
A. 对
B. 错
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