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【单选题】
阿基米德蜗杆在轴向剖面内的齿形为( )A.
阿基米德螺旋线
B.
直线
C.
曲线
D.
不确定
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举一反三
【单选题】China can speed up its economy development _____ she puts all her attention to it.
A.
as soon as
B.
as far as
C.
as long as
D.
as for as
【简答题】常用的网络营销定价策略不包括()。 [A]个性化定价策略 [B]声誉定价策略 [C]自动调价、议价策略 [D]产品组合定价策略
【单选题】Compared with the modern speed the broadband technology can transmit data______.
A.
at up to forty times of ordinary speed
B.
much more faster
C.
at a high speed
D.
within a second
【单选题】— Can you speed it up a little? I'll be late for my flight. — ____. I'm taking a short cut. We'll make it on time.
A.
Ok, I'll speed it up
B.
Never mind
C.
Take it easy
D.
Take your time
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