灭菌蒸馏水杀灭癌细胞的最佳温度是：（）。
A.41～45℃
B.43～45℃
C.37～43℃
D.37～41℃
参考答案：B
—Where're the children, Mr Black?
—Oh, they _______ their PE lesson on the playground. [ ]
A. have
B. had
C. are having
D. have had
治泻有九法是哪一部书提出的
A．《医宗必读》B．《景岳全书》C．《脾胃论》D．《医学心悟》
