判断下面的计算是(√)否(×)正确。 ( ) 1. three + four -five = two ( ) 2. five + four -three = four ( ) 3. six + two -four = five ( ) 4. nine + five -two = seven ( ) 5. seven + one -four = four
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【单选题】While discovering the cause of a serious illness,
【简答题】A. Illness and poor academic performance. B. Physical punishment and truancy. C. Illness and truancy. D. Physical punishment and poor academic performance.