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【单选题】
无功功率的单位是A.
kW
B.
W
C.
Var
D.
N
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反馈参考答案：
举一反三
【简答题】根据临床症状判断引起水肿的原因
【单选题】I don’t work here full-time. I ________ temporarily.
A.
just help out
B.
have just helped out
C.
am just helping out
D.
just helped out
【单选题】When I dropped in, Dr Smith _____, so we only had time for a few words.
A.
just left
B.
was just leaving
C.
has just left
D.
had just left
【简答题】材料一：徐州古丰县，有村曰朱陈。去县百余里，桑麻青芬氲。机梭声札札，牛驴走纷纭。女汲涧中水，男采山上薪。县远官事少，山深人俗淳。有财不行商，有丁不入军。家家守村业，头白不出门。……
——白居易《朱陈村》
材料二：清政府对工商业实行重税政策，全国各地税关税卡林立，“关津有过路之税，镇集有落地之税”，商人有时“且贩自东市，既已纳课，货于西市，又复重征”，再加上官吏勒索舞弊，“以致商人裹足不前”。这...
【单选题】．Unfortunately, when I arrived, Mary , so we only had time for a few words.
A.
was just leaving
B.
just left
C.
has just left
D.
had just left
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