No sooner _____ they rushed out into the street.

A．did they hear the news than

B．had they heard the news than

C．did they hear the news when

D．had they heard the news when

白血病病人的健康指导不正确的是：（）

A.指导病人加强营养

B.向病人说明坚持用药的重要性

C.向病人解释化疗的不良反应

D.指导病人定期复查血象

E.若化疗药物漏于皮下应立即用普鲁卡因局部封闭