题目内容

在膜蛋白的帮助下，某些蛋白质分子选择性地进入细胞的物质跨膜转运方式是

A. 原发性主动转运
B. 继发性主动转运
C. 经载体易化扩散
D. 受体介导入胞
E. 液相入胞

查看答案

搜索结果不匹配？点我反馈

更多问题

通货膨胀一般都会造成股价下降。 ( )

A. 对
B. 错

具有法人资格的国有企业、事业及其他单位以其依法占用的法人资产向独立于自己的股份公司出资形成或依法定程序取得的股份，称为国有法人股，国有法人股属于社会公众股。 ( )

A. 对
B. 错

[听力原文]6-7M: Can I take your order, pleaseM: Yes, A Maxi Quarter ponders for me, please. With chips.W: Anything else, sirM: A banana long coat, I think.W: What would you like to drink with your mealM: Can I have a beerW: I’m sorry sir; we are not licensed to sell alcohol.M: A cold milk then, please.W: Ok, sir, please wait a minute. Where does this conversation most probably taken place（）

A. In restaurant.
B. In hotel.
C. In office.
D. In snack -bar.

It is important that your homework (do)（）by yourself, otherwise, you would never know how to do it.