The methods of communication used during the war were primitive.
2023-07-03
A:simple
B:reliable
C:effective
D:alternative
参考答案：A
B:reliable
C:effective
D:alternative
参考答案：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。
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