A stem is the base form of a word which cannot be further analyzed without total loss of identity.(对外经贸2006研)
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The words “boys” and “raise” have a common phoneme and a common morpheme as well.(北二外2008研)
A. 对
B. 错
Radar is an example of acronym.(北二外2012)
A. 对
B. 错
海姆立克急救法用力的方向为( )
A. 向内向上
B. 向内向下
C. 向外向上
婴儿海姆立克急救法施救者用( )进行施救的。
A. 掌根部
B. 指尖
C. 拳头