身体瘦弱、气血亏虚患者针刺时手法不宜______，并应尽量选用卧位。
参考答案：过强
Sandy could do nothing but _____ to his teacher that he was wrong.
A．admit
B．admitted
C．admitting
D．to admit
ECOLIFE自动变速冷却系统有（）个热交换器。
A、1
B、2
C、3
D、4
