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【简答题】
碘量法所使用的指示剂有 ,直接碘量法使用的滴定液是 ,间接碘量法使用的滴定液是
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举一反三
【单选题】I tried to persuade him to give up the foolish idea, but in ________, and now he begins to regret.
A.
vain
B.
turn
C.
return
D.
case
【单选题】I tried to persuade him, but with little or no .
A.
consequence
B.
result
C.
outcome
D.
effect
【单选题】I tried to persuade him, but with little or no _______.
A.
consequence
B.
result
C.
effect
【简答题】I tried to persuade her to ________ her job as secretary.
【单选题】I tried to persuade him not to smoke,but he________listen. [ ]
A.
wouldn't
B.
couldn't
C.
shouldn't
D.
mustn'
【单选题】I tried to persuade my husband to give up smoking but ________. [ ]
A.
in advance
B.
in vain
C.
in charge
D.
in order
【简答题】瞿希贤在1954年根据东蒙民歌改编了无伴奏合唱 ,体现出她真挚抒情的音乐风格。
【单选题】I tried to persuade him to work hard, but with little ________.
A.
effect
B.
effective
C.
effectively
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