This is the only one of the books ________ deals with the Chinese history and the most instructive

one ________ I've read. [ ]

A. which; that  

B. that; which

C. which; which  

D. that; that

为明确诊断抽血培养的最佳时间是

A．先用抗生素3d，体温不退时抽取
B．停用原用的抗生素2d后，抽取3～5次血培养
C．在抗生素应用前，在24小时中，于畏寒发热时抽3次血培养
D．原先抗生素可继续应用，抽取3次血培养
E．停用抗生素1～2周后抽取血培养3次