营养物质进入细胞的速度为:水>Na+>Al3+>Mg2+
参考答案:对
孙中山答日本人:“我辈之三民主义首渊源于孟子,更基于程伊川之说。孟子实为我等民主主义之鼻祖。”孙中山这么说主要是因为孟子主张
A.人性本善
B.舍生取义
C.君轻民贵
D.得道者多助
Speaker A: Excuse me, do you need a hand Speaker B: ______
A.Oh, yes, please. I haven't used one like this before.
B.No, thank you. I don't need another hand.
C.Sorry, do you know how to do this exercise
D.of course. I need a hand.