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【判断题】
绝缘预防性试验的目的就是检验设备在长期额定电压作用下绝缘性能的可靠程度,以及能否在外界过电压作用下,也不致发生有害的放电而导致绝缘击穿。A.
正确
B.
错误
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【单选题】According to the passage, which is true of the school children?
A.
They prefer reading to watching TV.
B.
They like watching TV only after school.
C.
They would rather watch TV than read books.
D.
They like their teachers who teach them reading.
【简答题】A．They go out a lot more in the winter. B．They prefer to teach people in winter, C．They know when a river is too erous. D．They never try rivers graded from one to five.
【简答题】A．Because they can't afford to. B．Because they prefer the apartments near their workplace. C．Because a mobile home is more convenient as they move from place to place. D．Because small houses are easy ...
【简答题】A．They prefer white. B．They prefer red. C．They prefer yellow. D．They prefer gray.
【单选题】Which of the statements is true of gorillas?
A.
They prefer to stay near their home.
B.
They move from place to place within a limited area.
C.
They are followed when they travel by other animals.
D.
They move around looking for food according to a fairly regular pattern.
【单选题】Generally, senior citizens enjoy their and they prefer to live on their own _________ they can.
A.
as long as
B.
as far as
C.
now that
D.
even though
【简答题】A．They prefer the small town in the United States to big cities in England. B．They live a quiet, enjoyable, and healthy life in the small town. C．They have many acquaintances in the neighborhood. D．Th...
【简答题】A．They prefer white. B．They prefer red. C．They prefer yellow. D．They prefer gray.
【多选题】以麝香草酚蓝做指示剂，采用非水酸量法测定巴比妥类药物含量时，可使用的滴定剂和溶剂是
A.
甲醇钠的甲醇溶液
B.
氢氧化四丁基胺的氯苯溶液
C.
冰醋酸
D.
氯仿
E.
二甲基甲酰胺
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