题目

用2 mol·L-1的乙二醇溶液和2 mol·L-1的蔗糖溶液分别浸浴某种植物细胞，观察质壁分离现象，得到其原生质体积变化情况如下图所示。下列表述中，不正确的是（    ）   A．该细胞不可能是根尖分生区的细胞 B．AB段曲线表明细胞浓度在逐渐增大 C．BC段表明该细胞开始因失水过多而逐渐死亡 D．用一定浓度的KNO3溶液代替乙二醇溶液，可得到类似的结果补全对话 根据对话内容，从对话后的选项中，选出能填入空白处的最佳选 Woman：Can I help you? Girl：Yes, 1 . Woman：Do you like the green one? Girl：No, I don't like the colour. 2 . Woman：Yes, 3 . Girl：Oh, it's too long for me. 4 . Woman：Certainly. Here you are. Girl：Good. 5 How much is it? Woman：60 yuan. Girl：Here's the money. Woman：Thank you. A：This is nice. B：I'd like a dress, please. C：Could you give me a short one? D：The yellow one looks nice. E：Please try it on(试穿).