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【单选题】
大气环境三级评价项目现状监测时,以监测期间所处季节的主导风向为轴向,取上风向为0°,至少在约( )方向上各设置1个监测点,主导风向下风向应加密布点。A.
0°、45°、90°、135°、225°、270°、315°
B.
0°、180°
C.
0°、27°
D.
0°、45°、225°、270°
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举一反三
【单选题】According to the passage, what are third party screeners?
A.
Those who help detect deceptions.
B.
Those who help employ workers.
C.
Those who help glee counseling.
D.
Those who help write resumes.
【单选题】(Paragraph 4) In the third group, only 31 percent tried to help.
A.
More people decided not to help.
B.
The third group had many people.
C.
Thirty-one percent was a big number.
【单选题】It is said that _____ of the students like to help their parents with the housework
A.
third-fifths
B.
three-fifths
C.
thirds-fifth
D.
three-fifth
【单选题】One third of the class _____ agreed to be volunteers to help the aged this vocation.
A.
are
B.
is
C.
has
D.
have
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