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【简答题】
已知在△ABC中， （1）若三边长a，b，c依次成等差数列，sinA：sinB=3：5，求三个内角中最大角的度数； （2）若 BA ? BC = b 2 -(a-c ) 2 ，求cosB．
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【单选题】表演时,( )套进木偶头腔内。 A. B. C. D.
A.
大拇指
B.
小指
C.
中指
D.
食指
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【单选题】A scanner is an ______ device which enables you to feed pictures, photos or documents into a computer system.
A.
ambiguous
B.
ingenious
C.
intrinsic
D.
rigorous
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【单选题】A word processor enables you to create a(66)., store it electronically on a disk, display it on a screen, modify it by entering commands and characters from the keyboard, and print it on a printer.
A.
file
B.
document
C.
text
D.
paper
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【单选题】《涌幢小品》所载的“廷杖”始施行的朝代是（）
A.
宋朝
B.
明朝
C.
唐朝
D.
元朝
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【单选题】Joining a hobby group enables you to meet people with different interests.
A.
Y
B.
N
C.
NG
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【单选题】《涌幢小品》所载的“廷杖”始施行的朝代是( )
A.
宋朝
B.
元朝
C.
明朝
D.
唐朝
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【单选题】The frictionless maglev train enables you __________. 查看材料
A.
to develop a maglev train rail system
B.
to explain why maglev trains are faster
C.
to pull and push the train forward
D.
to create a magnetic field
E.
to experiment with the maglev train
F.
to travel from Paris to Rome in about two hours
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【多选题】Audience analysis enables you to ___________.
A.
select appropriate points of emphasis in your speech
B.
develop a useful level of detail
C.
choose and prepare appropriate visual aids
D.
create a tone that is sensitive to your audience’s circumstances
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【单选题】在加工中心上上,主轴每次换刀前停在一个固定位置上,所以主轴必须设有( )
A.
自动换刀装置
B.
主轴定向准停装置
C.
无级变速装置
D.
电主轴装置
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【单选题】I suppose you are not quite happy in your new position, ______?
A.
do you
B.
don't you
C.
are you
D.
aren't you
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【单选题】表演时,( )套进木偶头腔内。 A. B. C. D.
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【单选题】A scanner is an ______ device which enables you to feed pictures, photos or documents into a computer system.
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【单选题】《涌幢小品》所载的“廷杖”始施行的朝代是( )
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【单选题】The frictionless maglev train enables you __________. 查看材料
A.
to develop a maglev train rail system
B.
to explain why maglev trains are faster
C.
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D.
to create a magnetic field
E.
to experiment with the maglev train
F.
to travel from Paris to Rome in about two hours
查看完整题目与答案
【多选题】Audience analysis enables you to ___________.
A.
select appropriate points of emphasis in your speech
B.
develop a useful level of detail
C.
choose and prepare appropriate visual aids
D.
create a tone that is sensitive to your audience’s circumstances
查看完整题目与答案
【单选题】在加工中心上上,主轴每次换刀前停在一个固定位置上,所以主轴必须设有( )
A.
自动换刀装置
B.
主轴定向准停装置
C.
无级变速装置
D.
电主轴装置
查看完整题目与答案
【单选题】I suppose you are not quite happy in your new position, ______?
A.
do you
B.
don't you
C.
are you
D.
aren't you
查看完整题目与答案