果树适宜的栽植时期（）。
A、春季
B、夏季
C、秋季
D、冬季
参考答案：A, C
不属于心脏听诊内容的是（）
A.心率
B.心律
C.心音、额外心音
D.杂音
E.心前区隆起
—Tom liked playing football when he was young .
—_____, He plays it very well.
A. So he was B. So he did C. So did he
