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【单选题】
需求量的变动是因价格变动而变动；需求的变动是因为（）之外的其他因素变动引起的。A.
价格
B.
需求量
C.
供给量
D.
价格弹性
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举一反三
【单选题】Hearing the interesting story, all the people present_______.
A.
burst into laughing
B.
burst into laughter
C.
burst out laugh
D.
burst out laughter
【单选题】Joan didn't say anything at first and then _____ crying. [ ]
A.
burst out
B.
burst into
C.
burst on
D.
burst upon
【单选题】Even now I still didn't know why she ____ at such good news. [ ]
A.
burst into tear
B.
burst into laughing
C.
burst out crying
D.
burst out laugh
【简答题】翻译下列短语并完成句子。 1.burst into tears= burst out crying _____ 2. burst into flames____ 3. burst into applause _____ 4. burst in _____ 5. When he took the floor, the gathering____thunderous applause. 当他发言时...
【单选题】On seeing the funny scene,the audience ________. [ ]
A.
burst into tears
B.
burst into laughter
C.
burst into cheers
D.
burst out crying
【简答题】简述隧道横断面没计的原则
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