题目内容

The biggest problem you generally encounter while towing a single tow astern is ().

A. The catenary dragging on the bottom
B. Swamping of the tow
C. The tow tending to dive
D. Yaw

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亚硝酸钠操作人员()。

A. 可使用童工
B. 经过专门培训
C. 无需培训

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党的纪律主要包括哪几种？

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A red pillar light-buoy，Fl(2)5s，is to be substituted for the green conical light-buoy close S.W.of the stranded wreck.The above sentence mainly refers to ().

A red buoy is to be replaced by a green buoy
B. A green buoy is to be replaced by a red buoy A
C. Either a red buoy or a green buoy is to be replaced
D. Neither a red buoy nor a green buoy is to be replaced

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测定罐头食品中的总糖时，标定碱性酒石酸铜溶液所用的指示剂是()。

A. 甲基蓝
B. 次甲基蓝
C. 甲基红
D. 溴甲酚绿

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The biggest problem you generally encounter while towing a single tow astern is ().

A. The catenary dragging on the bottom B. Swamping of the tow C. The tow tending to dive D. Yaw

亚硝酸钠操作人员()。

党的纪律主要包括哪几种？

A red pillar light-buoy，Fl(2)5s，is to be substituted for the green conical light-buoy close S.W.of the stranded wreck.The above sentence mainly refers to ().

测定罐头食品中的总糖时，标定碱性酒石酸铜溶液所用的指示剂是()。

A. The catenary dragging on the bottom
B. Swamping of the tow
C. The tow tending to dive
D. Yaw