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【单选题】
Zhang Ming _____late into the night with his online friends yesterday.A.
chat
B.
chatted
C.
is chatting
D.
chated
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举一反三
【简答题】患儿兰兰,1岁。多汗,睡眠不安,方颅及肋骨串珠,X线检查骨骺端临时钙化带消失,呈毛刷样、杯口状改变,骨骺软骨带明显增宽,骨密度减低。
【简答题】长城与丝路代表的是对立的两种文化长城代表()丝路代表()
【单选题】The Invention of the Telephone In the nineteenth century, the invention of the telegraph made it possible to send noises, signals, and even music over wires from one place to another. However, the hum...
A.
had never traveled
B.
never had traveled
C.
was never traveled
D.
never was traveled
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