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1．Recently，the technology of cloud computing ________ in many commercial fields，and has achieved enormous economic benefits in our country．（　　）

	A．	has applied		B．	has been applied
	C．	applied		D．	applies

分析近來，在我國，云計算技術已被應用于許多商業領域，并且已取得了巨大的經濟效益．

解答答案：B．
因為the technology和apply之間是被動關系，而且時間狀語是recently，因此要用現在完成時的被動語態．故選B．

點評做時態題時，首先看時間狀語，由時間狀語判斷時態；如果沒有時間狀語，從句子暗含的意思來判斷句子時態．

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