利用转基因技术让奶牛生产含人血清蛋白的牛奶，转基因时应该（

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问题选择题

利用转基因技术让奶牛生产含人血清蛋白的牛奶，转基因时应该（　　）

A．将人血清蛋白基因导入奶牛的乳腺细胞内

B．将人血清蛋白基因导入能发育成奶牛的受精卵内

C．将人血清蛋白导入能发育成奶牛的受精卵内

D．将人血清蛋白导入奶牛的乳腺细胞内

答案

答案：B

阅读理解

阅读理解。

Jim is an English boy. He is a good student. He is in a red coat. Kate is a girl. She is Jim's sister. She is

a very smart girl. She is in a blue jacket.

Lucy and Lily are Americans. They are sisters. They like the same color. They are in red sweaters. They

are students, too.

Jim, Kate and the sisters are good friends. Jim and the sisters are in the same school, but Kate isn't a

student. She is only four years old. She is at home.

1. Jim is _______.

A. English

B. American

C. Chinese

D. Japanese

2. Kate is _______.

A. Lucy's sister

B. Lily's sister

C. Jim's sister

D. a student

3. What color is Kate's jacket?

A. It's red.

B. It's blue.

C. It's white.

D. It's yellow.

4. Jim, Kate, Lucy and Lily are _______.

A. in the same school

B. good students

C. good friends

D. brothers and sisters

5. Which of the following is right?

A. Jim has two sisters.

B. Lucy and Lily like different colors.

C. Lucy is an English girl.

D. Jim is Kate's brother.

判断题

境外投资者须在选择的证券公司处办理开设外汇资金账户——在上海为港币账户，在深圳为美元账户。( )