In the face of danger, we need to stay ____. Only in this way can we come up with good solutions.
A．still B．quietC．calmD．silent
C
本題的含義是面對(duì)危險(xiǎn)，我們需要保存冷靜才對(duì)，calm表示冷靜的意思，故本題選C。
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