电钻钻孔时不能用力过猛，遇到（）应立即减少用力，以防电动机过载。
参考答案：转速急速下降
He felt cheap about rushing to get in line before the old lady carrying heavy parcels.
A．felt inferior and ashamed
B．felt not worthwhile of doing something
C．felt bad about doing something
D．felt unhappy about doing something
寒热、鼻塞，头痛，脊痛，多见于（）
A.手厥阴心包络经病证
B.足少阳胆经病证
C.足太阳膀胱经病证
D.手太阳小肠经病证
E.足阳明胃经病证
