学龄儿童每日排尿量
A.400~500 mlB.500~600 mlC.600~800 mlD.800~1 400 mlE.1 400~2 000 ml
参考答案:D
在观察同一材料的同一部位时,当低倍镜换为高倍镜后[ ]
A.细胞数量变多,视野变暗
B.细胞数量变多,视野变亮
C.细胞数量变少,视野变暗
D.细胞数量变少,视野变亮
Don't be worried about his safety. _____, he is an eighteen-year-old young man. [ ]
A. In all
B. After all
C. Above all
D. First of all