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【单选题】
作业人员应当积极参加特种设备安全教育和（）。A.
环保培训
B.
节能培训
C.
安全技术培训
D.
制度教育
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举一反三
【简答题】He__________ the envelope and recognized his father's handwriting. [ ] A. stared at B．glared at C. looked at D.glanced at
【简答题】什么条件下有源二端网络只存在戴维宁等效电路,不存在诺顿等效电路?
【单选题】What does James like about his job as a nanny?
A.
He has received encouragement from his friends.
B.
He can easily do better than women nannies.
C.
He has more freedom to plan his own work.
D.
He is allowed to try out unusual methods.
【单选题】--- Whose comic book is it? --- It ________ be Daniel’s. He often shares his comic books with his friends.
A.
must
B.
can’t
C.
mustn’t
D.
can
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