下列不是药物通过生物膜转运机制的是( ) A.主动转运 B.促进扩散 C.渗透作用 发布时间:2017-07-10 08:48 │ 来源:www.tikuol.com 题型:单项选择题 问题: 下列不是药物通过生物膜转运机制的是( )A.主动转运B.促进扩散 C.渗透作用 D.脑饮作用E.被动扩散
题型:单项选择题 一The summer vacation is coming.Do you have any ideas about the coming vacation?-I volunteering in the old people’s home.What do you think of it?A.suggestB.expectC.wishD.would like 查看答案
题型:单项选择题 _____ and short of breath, Andy and Kate were the last to arrive at the top of the high rise. [ ]A. Being tired B. TiredC. Tiring D. To be tired 查看答案
题型:单项选择题 如图所示,两卫星A、B在各自的轨道上绕地球做匀速圆周运动,半径之比RA:RB=a:b,则( )A.两卫星A、B的线速度大小之比为a:bB.两卫星A、B的线速度大小之比为b:aC.两卫星A、B的角速度大小之比为^a:3bD.两卫星A、B的加速度大小之比为a2:b2 查看答案