We are sparing no efforts to create ____ more peaceful and more advanced world, ____ place

where everyone enjoys his life and freedom. [ ]

A. the, a

B. a, a

C. /, the

D. the, the

下面哪一条是错误的（）。

A.罗哌卡因是酰胺类局麻药

B.罗哌卡因的心脏毒性较低

C.丁卡因毒性作用强，脂溶性高

D.所有局麻药应用时都应加肾上腺素

E.作气管内表麻时局麻药中不宜加肾上腺素