下列有关哺乳动物个体发育的叙述，错误的是.

【名词&注释】

神经系统(nervous system)、哺乳动物(mammalian)、消化道(digestive tract)、呼吸道(respiratory tract)、细胞核(cell nuclear)、原肠胚(gastrula)、感觉器官(sense organ)、一部分(part)、中胚层(mesoderm)、动物个体发育

[单选题]下列有关哺乳动物个体发育的叙述，错误的是.

A. 胚胎发育过程中也会出现细胞衰老
B. 幼鹿经过变态发育过程长出发达的鹿角
C. 胚后发育过程中伴有细胞分化
D. 来自原肠胚同一胚层的细胞经分化发育成不同的组织

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学习资料：

[单选题]Which of the following is true of the Hatches?A .They had their children during the Great Depression.

A. They left the family farm to live in an old house.
B. They gave away their possessions to their neighbors.
C. They helped their neighbors to find jobs.

[单选题]

A. brave
B. careless
C. proud
D. selfish

[单选题]E.I needed to buy a digital camera, one that was simply good at taking good snaps (快照), maybe occasionally for magazines. Being the cautious type, I fancied a reliable brand. So I went on the net, spent 15 minutes reading product reviews on good websites, wrote down the names of three top recommendations and headed for my nearest big friendly camera store. There in the cupboard was one of the cameras on my list. And it was on special offer. Oh joy, I pointed at it and asked an assistant, “Can I have one of those?” He looked perturbed (不安). “Do you want to try it first?” he said, It didn’t quite sound like a question. “Do I need to?” I replied ,“There is nothing wrong with it？”This made him look a bit insulted and I started to feel bad, “No, no, but you should try it,” he said encouraging ,“compare it with the others.”

A. I looked across at the others: shelves of similar cameras placed along the wall, offering a wide range of slightly different prices and discounts, with each company selling a range of models based around the same basic box. With so many models to choose from, it seemed that I would have to spend hours weighing X against Y, always trying to take Z and possibly H into account at the same time. But when I had finished, I would still have only the same two certainties that I had entered the store with: first, soon after I carried my new camera out of the shop., it would be worth half what I paid for it; and second, my wonderful camera would very quickly be replaced by a new model.
B. But something in the human soul whispers that you can beat these trups by making the right choice, the clever choice, the wise choice. In the end , I agreed to try the model I had chose. The assistant seemed a sincere man . So I let him take out of my chosen camera from capboard, show how it took excellent pictures of my fellow shoppers… and when he started to introduce the special features, I interrupted to ask whether I needed to buy a carry-case and a memory card as well.
C. Why do we think that new options(选择)still offer us anything new? Perhaps it is because they offer an opportunity to avoid facing the fact that our real choices in this culture are far more limited than we would like to imaging.
D. 57.The shop assistant insisted that the writer should
E. try the camera to see if there was anything wrong with it.
F. compare the camera he had chosen with others.
G. get more information about different companies.
H. trust him and stop asking questions.

[单选题]39_____

A. attach
B. pay
C. link
D. apply

[单选题]Playing on a frozen sports field sounds like a lot of fun. Isn’t it rather risky, ____?

A. though
B. also
C. either
D. too

[单选题]每个细胞核可以有一到几个核仁。( )

A. 正确
B. 错误

[单选题]金藻门植物细胞具有纤维壁和果胶质壁。( )

A. 正确
B. 错误

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