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【单选题】
管道系统安装完毕,外面检查合格后,应按设计要求进行水压试验。冷热水、冷却水的试验压力,当工作压力小于等于1.0mpa时,为 倍工作压力。A.
1.2
B.
1.3
C.
1.5
D.
2.0
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举一反三
【单选题】According to the passage, whether TV is good or not depends on ______.
A.
its quality
B.
people's attitude towards it
C.
how we use it
D.
when we use it
【单选题】When did Mrs. Green usually find the air in the room terrible?
A.
During TV time.
B.
During the meeting.
C.
During the dinner time.
D.
During the day time.
【简答题】可以反映企业经济活动效果的好坏,是企业进行积累的重要来源,直接关系到企业和职工利益的指标是
【简答题】Children naturally often want the toys ______ (advertise) during TV programs.
【单选题】Many students will watch TV only to______ time during the summer vacation.
A.
spend
B.
waste
C.
enjoy
D.
kill
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