(2013·福建高考)basic first­aid techniques will help you respond quickly to emergencies.A.

发布时间：2020-08-17 09:29:15

(2013·福建高考)    basic first­aid techniques will help you respond quickly to emergencies.
A. Known
B. Having known
C. Knowing
D. Being known

网友回答

A. Known
B. Having known
(答案→)C. Knowing
D. Being known
解析：选C　考查非谓语动词。句意：了解基本的急救技巧能够帮助你快速应对紧急情况。分析句子结构可知，空处在句中充当主语，应用动词­ing形式。having known强调“完成”，不符合句意，可排除。故选C。
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