_____ will take John one year to finish the plan. [ ]
A. Tom
B. She
C. It
D. Who
答案:C
一级沉淀池通常可去除总悬浮固体的( )。
A.40%~50%
B.50%~60%
C.60%~70%
D.70%~80%
下列哪项属于阳黄与阴黄的鉴别要点()
A.小便黄与不黄
B.病程较长与较短
C.黄色鲜明与晦暗
D.虚证与实证
E.起病缓急