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【多选题】
Flash的帧有四种,分别是( )。A.
普通帧
B.
空白普通帧
C.
D.
空白
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举一反三
【单选题】( ) the 1500's ( ) the first European explored the coast of California.
A.
It was not until/ then
B.
It is until/ that
C.
It is not until/ when
D.
It was not until/ that
【单选题】It would take nearly a book in itself to explain the scope, rigor , and stress of those tests .
A.
vigor
B.
strictness
C.
tradition
D.
pursuit
【简答题】批准从事麻醉药品、第一类精神药品生产以及第二类精神药品原料药生产的企业
【简答题】C When the first European arrived in the land now called Canada, around 400 years ago, there were about 350,000 native people living there. Most of these people were later forced to live in separate p...
【单选题】_______is the first European country that successfully founded the first colony in America.
A.
France
B.
Spain
C.
Britain
D.
Portugal
【单选题】The jacket doesn’t fit Terry, as he hashuge body and the jacket is small.()
A.
such a; such
B.
such a; so
C.
so; so
D.
so; such a
【单选题】“Your body doesn’t know how to lie” indicates_____
A.
something is wrong with your body and you can only stand.
B.
body language is important.
C.
body contact is dangerous.
D.
we can’t separate mind from body.
【简答题】考虑一用于氩离子激光器的稳定球面腔,波长 λ = 0 . 5145 m m ,腔长 L = 1m ,腔镜曲率半径 R 1 =1 . 5m , R 2 =4m 。试计算光腰尺寸和位置,两镜面上的光斑尺寸,并画出等效共焦腔的位置。
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