The methods of communication used during the war
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The methods of communication used during the war were primitive.
A:simple B:reliable C:effective D:alternative
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答案:A
本句意思:战争中的通讯方式很简陋。primitive原始的,发展水平低的,落后的。simple 简单的;reliable可靠的;effective有效的;alternative可供替代的,非传统的,另类的。
