皮皮学，免费搜题
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【单选题】
当打开房门闻到燃气气味时，要迅速( )以防止引起火灾。A.
打开燃气灶具查找漏气部位
B.
打开灯查找漏气部位
C.
打开门窗通风
D.
打开风扇进行通风
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】下列哪项可维持神经和肌肉的兴奋性，是构成骨骼和牙齿的主要成分：( ) A．钙 B．镁 C．锌 D．磷 E．铁
【单选题】We specialize in supplying small stores in rural areas,and this assured sales outlet enables us () of fairly large quantities.
A.
of disposing
B.
dispose
C.
to dispose
D.
disposing
【单选题】听力原文：Q: When will those specialists arrive from Wisconsin? (A) Yes, we specialize in homepage customization. (B) For about two weeks. (C) I haven't received their itinerary. (8)
A.
B.
C.
【单选题】We specialize ( ) the exportation of Chinese light industrial products.
A.
of
B.
with
C.
in
【简答题】英译中 We specialize in ...
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