传染性肝炎病人排泄物的处理最好选用()
A.来苏
B.新洁尔灭
C.漂白粉
D.石炭酸
E.乳酸
参考答案:C
Why not try your luck downtown, Bob? That’s ________ the best jobs are.
A.where
B.what
C.when
D.why
旅游发展规划应遵循哪些原则性要求?