柴油机热效率：（）
A、0.10－0.20
B、0.40－0.50
C、0.05－0.10
D、0.25－0.40
参考答案：B
自汗中虚证的治疗原则为
A．虚火喉痹B．噎膈C．癫病D．郁病E．消渴
Charles was alone at home, with ________ looking after him. [ ]
A. someone
B. anyone
C. not one
D. no one
