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【判断题】
阿贝折射仪的量程为1.3000~1.7000，精密度为±0.0001，通常用4位有效数字进行记录。A.
正确
B.
错误
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【单选题】Attandances at basketball matches have____ since the coming of television.
A.
dropped in
B.
dropped down
C.
dropped off
D.
dropped out
【简答题】After the basketball match, he still hasan important conference. She lingered long over his letter. The recruit threw the grenade 50 meters. The development of economy remains one ofthe priorities of ...
【单选题】How long has it been since the man played basketball?
A.
Less than 25 years.
B.
Less than 5 years.
C.
More than 5 years.
D.
More than 25 years.
【单选题】Attendances at basketball matches have___________since the coming of television.
A.
dropped in
B.
dropped down
C.
dropped off
D.
dropped out
【简答题】Directions: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which t...
【单选题】The boys even have no time for their homework _____ the basketball match. [ ]
A.
because of
B.
because
C.
as
D.
since
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