______ for the timely warning from the local weather station, our hut would not be so safe as it is.
A. Be it not
B. Should it not be
C. Had it not been
D. Were it not
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According to the passage, the critical period for learning a language is ______.
A. at the age of ten months
B. between the ages of about ten months and ten years
C. at the age of ten years
D. from some time after birth to six or seven years
检查胆囊功能的方法是()
A. B超
B. CT
C. 经内镜逆行性胰胆管造影
D. 口服胆囊造影
E. 经皮肝穿刺胆道造影
These foreign tourists tried to ______ a hard bargain with the local peddler.
A. shape
B. force
C. produce
D. drive
According to the passage, giving a party in Britain may fill the neighbours with ______.
A. happiness
B. anger
C. thankfulness
D. envy
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