题目内容

Starch is to life.

A. impossible
B. inevitable
C. inaccessible
D. indispensable

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Many small victories to a big one.

A. come up
B. add up
C. go up
D. rise up

Please the form and submit a written application letter.

A. fill out
B. set out
C. fall in
D. put out

The teacher’s explanation the puzzling problem.

A. understood
B. calculated
C. facilitated
D. clarified

This work is enough to run everyone down.

A. interesting
B. exhausting
C. frustrating
D. dedicating

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