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【单选题】
重整装置氢的腐蚀作用是（）。A.
硫碳
B.
破裂
C.
材质鼓泡
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举一反三
【单选题】When did the man go to the Great Wall?
A.
Last spring.
B.
Last autumn.
C.
Last winter.
【单选题】When did Carolyn call Bob?
A.
Last Saturday morning.
B.
Last Saturday evening
C.
Last Sunday morning
D.
Last Sunday evening.
【单选题】听力原文：W: When was the last time you cleaned this apartment? M: When was the last time my mother came over? Q: What does the man mean? (17)
A.
He hasn't had time to find another apartment.
B.
His mother cleaned his apartment every day.
C.
He hasn't cleaned the apartment since his mother came to see him.
D.
His mother was the last person to come over to his apartment.
【单选题】When did the Taleban capture Taloqan?
A.
Last September.
B.
Last week.
C.
Last year.
D.
Last December.
【单选题】-----______you received the news ? ------Last night .
A.
When was it that
B.
When was it
C.
When it was that
D.
When it was
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