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【单选题】

下面不是堆料机悬臂皮带打滑的原因。()

A.
悬臂皮带跑偏
B.
悬臂皮带张紧力不够
C.
驱动滚筒包胶纹磨平
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参考解析:
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举一反三

【多选题】单级悬臂泵具有平衡孔的作用是()。

A.
减小冲刷
B.
增加扬程
C.
平衡轴向力
D.
减轻轴封箱压力

【单选题】悬臂固定桥又称

A.
双端固定桥
B.
单端固定桥
C.
半固定桥
D.
复合固定桥
E.
固定一可摘联合桥

【单选题】8.The London EyeThe London Eye is a cantilevered(带悬臂的) observation wheel on the South Bank of the River Thames in London. It is Europe's tallest cantilevered observation wheel, and is the most popular...

A.
The London Eye is a symbol of London.
B.
Visitors can walk around inside the capsule.
C.
The London Eye is the world's tallest Ferris wheel.
D.
The London Eye can not offer the highest public viewing point in London now.