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【多选题】
对于 的内、外锥体(α<24o),一般采用靠模法车削。A.
长度较长
B.
长度较短
C.
精度要求很高
D.
精度要求不高
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【单选题】With the environment worsening, the government ______ people for more environment protection．
A.
reacts to
B.
appeals to
C.
refers to
D.
leads to
【单选题】The difference between impromptu speech and the extemporaneous speech is ______.
A.
the impromptu speech can not be avoided
B.
people choose to speak extemporaneously
C.
impromptu speech is delivered with some preparation
D.
extemporaneous speech is prepared in advance
【单选题】all ship which,in accordance with the present convention ,are required to carry radio installation shall carry____
A.
Q-code word
B.
telephone numbers and addresses
C.
the international code of signals
D.
radio instructions
【简答题】多媒体技术的研究内容有哪些？
【单选题】When you want to express our blindness to environment caused the deterioration of environment , you may say_________.
A.
Owing to our blindness, environment is getting worse.
B.
Our blindness to environment results in the deterioration of environment.
C.
The deterioration of environment resulted in our blindness to environment.
【单选题】AlI ships which,in accordance with the present Convention, are required to carry radio in stallation shall carry( )
A.
Q-code word
B.
telephone mimbers and addresses
C.
the International Code of Signals
D.
radio instructions
【单选题】Grandma Moses began to paint because she wanted to _______.
A.
make her home beautiful
B.
keep active
C.
improve her salary
D.
gain an international fame
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