正常人体生理状态下钙泵转运过程属于细胞膜跨膜物质转运中的哪种()。 A.单纯扩散 B 发布时间:2017-05-27 14:22 │ 来源:www.tikuol.com 题型:单项选择题 A1/A2型题 问题: 正常人体生理状态下钙泵转运过程属于细胞膜跨膜物质转运中的哪种()。A.单纯扩散B.易化扩散C.主动转运D.被动转运E.胞吞
题型:单项选择题 A1/A2型题 用所给单词的正确形式填空,使句子意思完整。小题1:It isn't easy _________(become) good English speakers. 小题2:On the __________(three) floor, there is a drugstore. 小题3:There are some ___________(different) in every country. 小题4:When we heard the funny story, we couldn't stop __________(laugh). 小题5:We should speak to our teacher __________(polite). 查看答案