题目内容

A.reachedB.reached overC.reached outD.reached down

A. reached
B. reached over
C. reached out
D. reached down

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A.20-yearB.a 20-yearC.20-yearsD.a 20 years

A. 20-year
B. a 20-year
C. 20-years
D. a 20 years

A.As forB.As toC.Judging byD.According to

As for
B. As to
C. Judging by
D. According to

【C7】

A. reserves
B. preserves
C. conservations
D. reservations

【C2】

A. rates
B. ratios
C. proportions
D. percentages

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