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【单选题】
FX系列PLC中SET,表示是( )指令?A.
下降沿
B.
上升沿
C.
输入有效
D.
置位
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【简答题】More than a hundred s and kids gather for the Star Party on a cold evening, chattering excitedly as they stand in the dark on a Virginia hillside. The odd thing is, no one has turned on a flashli...
【简答题】More than a hundred years ago, an American produced a . He called it indoor tennis. The Americans were not interested in it at first so he sent it to his London friends and it became very popular ...
【简答题】More than a hundred reporters from around the world thronged and bustled in the Stock Exchange Building in Stockholm's Old Town for about an hour before the doors to the Swedish Academy swung open. No...
【多选题】将地面观测距离归算至参考椭球面需要进行的改正是( )。
A.
斜距改为水平距离
B.
归心改正
C.
有水平距离改为椭球面对应的弦长
D.
由弦长换算为椭球面对应的弧长
E.
方向改正
【多选题】关于建筑详图图示方法，下列表述正确的是（）
A.
详图的比例视细部的构造复杂程度而定，以能表达详尽清楚、尺寸标注齐全为目的
B.
详图数量的选择，与建筑的复杂程度及平、立、剖面图的内容及比例有关
C.
详图常选用的比例是l：100、1：50、1：20、1：10
D.
详图的图示方法有局部平面图、局部立面图、局部剖面图，详图可分为节点构造详图和构配件详图两类
【单选题】Competitors from more than a hundred countries have____in Los Angeles for the Olympic Games.
A.
denounced
B.
converged
C.
detached
D.
sprawled
【单选题】The biography cited more than a hundred source books that the author had ______.
A.
consulted
B.
sought
C.
inquired
D.
inferred
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