is the students to find out the meaning and the usage of new words.A. What a dictionary

问题补充：

is the students to find out the meaning and the usage of new words.

A. What a dictionary does; help

B. What dictionary does; to help

C. How a dictionary does; help

D. All that a dictionary does; helps

答案：

(答案→)A. What a dictionary does; help

B. What dictionary does; to help

C. How a dictionary does; help

D. All that a dictionary does; helps

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