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【单选题】
What is the club’s most frequent type of activity?A.
a meal
B.
a talk
C.
a visit
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】高效液相色谱定量分析常用 和 。
【单选题】听力原文： All the rescuers found in the mountains of the Sierra de Perija in Venezuela was the scattered wreckage of the plane and the charred corpses of its occupants. There were no survivors. The plane ...
A.
All the passengers were dead.
B.
Both of the plane's engines got lost.
C.
The aircraft exploded and caught fire.
D.
The black box has not been found yet.
【单选题】听力原文： All the rescuers found in the mountains of the Sierra de Perija in Venezuela was the scattered wreckage of the plane and the charred corpses of its occupants. There were no survivors. The plane ...
A.
All the passengers were dead.
B.
Both of the plane's engines' got lost.
C.
The aircraft exploded arid caught fire.
D.
The black box has not been found yet.
【判断题】The would-be rescuers didn’t succeed in saving the drowning boy because they were scared of water .
A.
正确
B.
错误
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