A:单层膜围成的泡状结构
B:内部的水溶液称为体液
C:细胞的水盐库
D:与植物细胞渗透吸水有关
— There is little water left in the bottle, ______? — No, we need to buy some more before we run out of it.
右边漫画告诉我们()①国家应依法治理市场 ②公民应加强执法力度③消费者应依法维权 ④企业应该依法经营