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【多选题】
梯形图编程的一般规则有哪些？A.
分段结构。
B.
先触点后线圈/指令盒。
C.
垂直无触点，无触点必垂直。
D.
先复杂后简单
E.
避免同名线圈，以免产生错误的输出状态。
F.
输入映像寄存器用于接收外部输入信号，不能有PLC内部其他继电器的触点来驱动。
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举一反三
【单选题】信息化战争仍然是政治通过（）的继续，仍然是流血的政治，仍然是“用来解决阶级、民族、国家和国家、政治集团和政治集团之间矛盾的最高的斗争形式，是政治通过暴力手段的继续”。
A.
暴力手段
B.
和平手段
C.
经济手段
D.
科技手段
【单选题】The author puts stress on the survival of democracy to show that ______.
A.
democracy has great vitality to survive
B.
people should not take pleasure in the decline of newspapers
C.
the decline of newspapers won't be so harmful to society
D.
democracy might not survive the coming decline of newspapers
【单选题】信息化战争仍然是政治通过( )的继续,仍然是流血的政治,仍然是用来解决阶级、民族、国家和国家、政治集团和政治集团之间矛盾的最高的斗争形式。
A.
暴力手段
B.
和平手段
C.
经济手段
D.
科技手段
【单选题】In a liberal democracy, .
A.
all positions of power are elected
B.
elected rulers are not subject to any limits
C.
democracy is limited by protection of individual rights
D.
elected rules pursue left-of-centre policies
【单选题】Despite high prices of the goods, the shopping mall is always attracting a lot of customers for its ________ supplies. [ ]
A.
diverse
B.
discount
C.
abundant
D.
effective
【简答题】英译汉 direct democracy
【单选题】Direct democracy makes tariffs less likely to be voted into law because:
A.
the number of people who are hurt by protectionist measures exceeds the number of people who gain from protectionist measures.
B.
domestic producers threatened by increased imports will lobby against the trade agreements entered into by the countries.
C.
each person does not vote on the basis of his/her direct interest as a winner or loser from protection.
D.
the size of the individual losses would be larger than the individual gains from any potential protectionist measure.
【单选题】Direct democracy makes tariffs less likely to be voted into law because:
A.
the size of the individual losses would be larger than the individual gains from any potential protectionist measure.
B.
domestic producers threatened by increased imports will lobby against the trade agreements entered into by the countries.
C.
each person does not vote on the basis of his/her direct interest as a winner or loser from protection.
D.
the number of people who are hurt by protectionist measures exceeds the number of people who gain from protectionist measures.
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