问题
选择题
Don't give _____ any subject or you'll fall _____ the others. [ ]
A. to; off
B. in; over
C. up; behind
D. back; down
答案
答案：C
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Don't give _____ any subject or you'll fall _____ the others. [ ]
A. to; off
B. in; over
C. up; behind
D. back; down
答案：C
资的57．7％，民营经济对国民经济的贡献率超过60％。这意味着