单选题The ()(千斤滑车) can run the gooseneck.Aheavy derrickBpulley blockCtopping lift blockDguy tackle
单选题
The ()(千斤滑车) can run the gooseneck.
A
heavy derrick
B
pulley block
C
topping lift block
D
guy tackle
参考解析
解析:
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