单选题：The methods of communication used during the war were primit

题目内容：

The methods of communication used during the war were primitive. A．reliable
B．effective
C．simple
D．alternative

参考答案：

答案解析：

The number of pupils who asked for sick leave decreased.

The number of pupils who asked for sick leave decreased.A．Right B．Wrong C．Not me

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What is NOT true of the effectiveness of"sunscreen", according to the last parag

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