4升：300毫升的比值是______．
0.4升：300毫升=400毫升：300毫升=400÷300=
故填
镜检霍乱弧菌最常用
A．直接镜检
B．相差显微镜
C．暗视野显微镜
D．染色镜检
E．悬滴法
We do not think the twelfth fiveyear plan for our city is practical ________ recent developments.
A．in view of
B．in favor of
C．in case of
D．in memory of
