单项选择题

If used ______, even the most poorly designed cell phone should be able to function for at least three years.

(A) continuously
(B) sparingly
(C) fortunately
(D) uncertainly
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单项选择题
______ CEO Ken Chung sold his majority stake in the company's stock, it was trading for a record-high of $4.14 a share.
(A) On the other hand
(B) At the time
(C) In addition that
(D) However much
单项选择题
Altech Computer is looking for a ______ computer technician to join its damage prevention and repair team.
(A) qualifier
(B) qualify
(C) qualification
(D) qualified
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