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【单选题】
进一步确诊应首选下列哪项检查A.
PTC
B.
ERCP
C.
CT
D.
静脉胆道造影
E.
B超
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反馈参考答案：
举一反三
【简答题】One of the reasons why many drivers refuse to wear seat belts is because ________. A) they don’t think that it is comfortable to wear seat belts B) they don’t believe that an accident involving a terr...
【单选题】温度对流体的粘度有一定的影响，当温度升高时，()。
A.
液体和气体的粘度都降低;
B.
液体和气体的粘度都升高;
C.
液体的粘度升高、而气体的粘度降低;
D.
液体的粘度降低、而气体的粘度升高。
【单选题】Many think they can offer to buy a car but they don’t think they can offer to_________it．
A.
prevent
B.
maintain
C.
defend
D.
keep
【单选题】Americans think they're good drivers _______ drivers in other countries. [ ]
A.
comparing to
B.
to compare to
C.
compared to
D.
being compared to
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