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【判断题】
膜接触器可以分为G-L型、L-G、L-L型三种A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Whose notebook is this? It ______ be Lucy's. Look! It has her name on it. [ ]
A.
might
B.
must
C.
could
D.
can't
【单选题】— Is that Lucy's cousin, Anna? — No, it ____ her. She has gone to Paris.
A.
mustn't be
B.
might be
C.
can't be
D.
could be
【单选题】—Whose book is this? —It _______ be Lucy's. Look, here is her name. [ ]
A.
may
B.
must
C.
can't
D.
need
参考解析：
知识点：
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