题目

You can use your Business Telecard International at any card phone in the UK. Here is some information about making international phone calls. You can now phone almost any country in the world, although in some cases you can only call major cities. When you cannot make direct dialing calls, you can ask the international operator to help you. This is more expensive and takes more time, but it may be helpful if you want to speak to a particular person and no one else; in this case you should ask for a “person-to-person” call. Even more expensive is a reverse charge call where the person who下图是小麦种子发育、成熟、储存和萌发过程示意图，该过程中细胞含水量、分裂、分化程度、大分子化合物的合成和分解等都发生了一系列变化，下列有关说法错误的是A. ①阶段，细胞的种类和数目增多B. ②阶段，淀粉的含量逐渐增多C. ③阶段，细胞内自由水与结合水的比值逐渐降低D. ④阶段可能发生基因突变、基因重组、染色体变异