举报
是不是c呀?c->blow
and 前后应当并列,blow是名词,不用动名词
The harmonica`s (tones) are made by the vibrations of the reeds (created by) the (blowing) and suction (to) of the player.
Irene
C有什么错误呢?blowing是动名词,与后面的suction构成并列结构。答案是D。
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