A. give off B. give out C. give up D. give in
A. helpful B. heavy C. healthy D. high
A. played B. worked C. operated D. affected
A. 逻辑表达式 B. 字符表达式 C. 数值表达式 D. 前三种说法都不对
A. Consequently B. Finally C. Lately D. Fortunately
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