将人体血细胞置于质量浓度为9%的食盐溶液中制成装片后,用显微镜观察,可以发现血细胞呈现的状态是[ ]
A.质壁分离
B.正常状态
C.细胞膜破裂
D.细胞皱缩
答案:D
The train_____at the present speed until it reaches Chicago at eleven o’clock tonight.
A.has gone
B.will be going
C.went
D.goes