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【判断题】
在无人机动力系统中，关于螺旋桨上面的CW和CCW。CW，CLOCKWISE 的缩写，表示顺时针；CCW， counter-clockwise的缩写，表示逆时针。用在螺旋桨上面指旋转的方向。A.
正确
B.
错误
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举一反三
【单选题】What's the solution to the problem suggeted by the author?
A.
Parents should refuse to buy if they found their children are influenced by advertising.
B.
Parents should work on enhancing children's awareness of advertising.
C.
Media should take on their responsibility of shielding children from advertising.
D.
Parents need to keep watch on what their children on watching
【单选题】Harry’s parents do all instead of him because _______.
A.
he’s too young
B.
he has poor health
C.
he’s busy with his studies
D.
they hope he spends all time her husband
【简答题】英语四级 口语考试自我介绍怎么写?
【单选题】ACID RAIN: What's the Solution? One of the wildest regions in the U.S., far from civilization, is the Adirondack area of northern New York State. For years this isolated spot has had the reputation of...
A.
Y
B.
N
C.
NG
【简答题】公共 英语 口语 四级 考试怎么考的？？
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