1.判断题- (共4题)
2.单选题- (共9题)
A.孩子的基因组成是AA |
B.孩子的基因组成是AA或Aa |
C.孩子的基因组成是Aa |
D.孩子的基因组成是AA和Aa |
A.一个DNA分子就是一条染色体 |
B.一个DNA分子上只有一个基因 |
C.一个DNA分子上有许多个基因 |
D.一个细胞中只有一个DNA分子 |
3.选择题- (共1题)
B
Do you like reading stories? Maybe you will answer, "No, I am not a child any more!" Yes, children all over the world always love stories.
Chinese children are 1 in Monkey King's story. It 2 a popular bedtime story in China for many years. In fact, adults also love the story a lot. For them, Monkey King has become a very 3 part in the memory of their childhood. The clever and humorous monkey 4 the hearts of many Chinese people. British boys and girls all know Alice's Adventures in Wonderland well. As the name shows, it's a story full of dangerous but exciting trips. Children 5, cry and even get frightened(害怕的) with Alice together while reading the story. Most American kids have read The Adventures of Tom Sawyer, by the famous 6, Mark Twain. Everyone likes the brave boy who also has lots of 7. Some scenes(场景) of the story may make your heart go faster, for Tom and his friends meet some very bad men and are usually 8. Of course in the end, they beat the bad ones.
You may also ask me 9 I like stories. Yes, I have liked them since I was very young. At that time, I often 10 all my pocket money on story books. For me, stories are much more delicious than chocolate! They help me learn a lot. So either young or old, let's enjoy stories.
4.多选题- (共1题)
5.填空题- (共4题)

(1)卵细胞是由____构成的(填序号),其里面含营养物质的结构是____。
(2)【 】________具有保护鸡卵的作用;【 】________具有固定胚胎位置的作用;【 】________能为胚胎发育提供水分和营养;气室内有空气,其意义在于______________。
(3)鸟卵产出后,胚胎发育停止,后经雌雄亲鸽交替孵卵,才能继续发育,最终发育成雏鸽。这种现象说明,鸟类的受精卵主要由、在母体外发育,受_________比较大。
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【1】题量占比
判断题:(4道)
单选题:(9道)
选择题:(1道)
多选题:(1道)
填空题:(4道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:6
7星难题:0
8星难题:6
9星难题:6