细胞膜的跨膜物质转运功能中,“由膜结构中特殊蛋白质分子的‘协助’下完成物质转移”属于()
A.单纯扩散
B.易化扩散
C.主动转运
D.被动转运
E.引起兴奋的条件
参考答案:B
(B) 根据句意和汉语提示,写出单词的正确形式。
小题1:On Children’s Day, children could not hide their______________(excite).
小题2:He comes from the _______________(south) city of China.
小题3:Jim is happy to live on the ____________ (twelve) floor because he enjoys the view out of the windows.
小题4:Mr. and Mrs. Wang will celebrate their fifteen years of ____________ (marry) this weekend.
小题5:The water in the river is______________(harm). You can drink it without cooking.
清圣祖即位几岁()
A、6.0
B、7.0
C、8.0
D、9.0