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【单选题】
天狼星伴星的密度是()克每立方厘米。A.
50.0
B.
100.0
C.
250万
D.
1000.0
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皮皮学刷刷变学霸
举一反三
【单选题】Eye contact with an audience, according to the author, has all the following benefits for the speaker EXCEPT that it doesn't ______.
A.
help the speaker to control the audience
B.
help the speaker to gain audience interest and esteem
C.
help the speaker to know whether he is talking too much about a certain point
D.
help the speaker to analyze his audience when he is beginning his speech
【简答题】根据《税收征收管理法》的规定，税务机关征收税款时，必须给纳税人开具（ ）。
【简答题】NPN和PNP接近开关的区别在于什么?
【单选题】With all the audience ________, the speech began.
A.
sat
B.
seating
C.
seated
D.
having seated
【简答题】动脉血管壁一般分为______、______和______三层，其中大动脉的中膜以______为主，中动脉和小动脉的中膜以______为主。
【单选题】The man made such a _______ speech that all the audience at the meeting felt _______. [ ]
A.
boring; boring
B.
boring; bored
C.
bored; boring
【单选题】All of (the) performers in the play did (well). The (audience) applauded the (actors) excellent performance.
A.
the
B.
well
C.
well
D.
actors
【单选题】Eye contact with an audience, according to the author, has all the following benefits EXCEPT that it does not help the speaker ______.
A.
to control the audience
B.
to gain audience interest and esteem
C.
to know whether he is talking too much about a certain point
D.
to analyze his audience when he is beginning his speech
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