I ________ my son ________a doctor, but he wasn't good enough at science. [      ]

A. hoped; became

B. had hoped; would become

C. hoped; would become

D. had hoped; would have become

如图表示植物细胞吸水和失水示意图，根据图回答：

（1）细胞吸水或失水主要取决于______浓度和______浓度之间的大小

（2）萎蔫的青菜放入清水中变得硬挺，在这一过程中细胞是吸水还是失水______

（3）用盐淹萝卜丝时萝卜丝很快变软，在这一过程中细胞吸水还是失水？______．