刮拭要领：按压力、点线面相结合、还有（）。
A、刮拭长度
B、刮拭手法
C、刮拭时间
D、腧穴特性
参考答案：A
将下列句子变为否定句。
1. She's a tall girl. ____________________________.
2. It's yours, too. _____________________________.
3. We see some men in the car. ____________________________.
4. Tom goes to school on foot. ____________________________.
5. You'll meet your friend there. ____________________________.
6. These are their bags and socks. _____________________________.
二级社会预防的主要对象是（）
A.健康人群
B.高危人群
C.病患者
D.残疾人群
E.其它
