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【单选题】
对于舵机供电线路不论舵机本身还是线路均___保护装置，但必须设置过载报警装置。A.
不设置短路
B.
必须放置过载
C.
单独设置过载
D.
不设置过载
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皮皮学刷刷变学霸
举一反三
【单选题】Carolyn Forte gives us time-saving tips on all of the following EXCEPT
A.
doing shopping.
B.
traveling by air.
C.
making phone calls.
D.
putting things in order.
【单选题】---Then see you on New Year’s Day. --- So long! And_____!
A.
at best
B.
all the best
C.
all the time
D.
all the same
【单选题】A SOLAS passenger ship safety certificate is required on all ______.
A.
T-Boats carrying more than 49 passengers for hire
B.
T-Boats that carry more than 12 passengers on an international voyage
C.
T-Boats carrying more than 150 passengers for hire
D.
large excursion vessels on lakes，bays，sounds，and river routes
【简答题】什么叫黄疸?黄疸按病因学分为哪几类?
【单选题】Independence Day In 1767, England placed a tax on all tea used by the American colonist. The colonists protested 'taxation without representation' and refused to allow the tea to be unloaded. In 1773,...
A.
1767.
B.
1776.
C.
1777.
D.
1779.
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