问题
选择题
Everyone can _____ and every dollar counts. Please join us and donate some money to help earthquake victims. [ ]
A. make sense
B. make a promise
C. make a point
D. make a difference
答案
答案:D
Everyone can _____ and every dollar counts. Please join us and donate some money to help earthquake victims. [ ]
A. make sense
B. make a promise
C. make a point
D. make a difference
答案:D
右图为人类口腔上皮细胞(图1)和洋葱表皮细胞(图2)结构示意图,据图回答:
|
(2)图中[3] _(20) __含有遗传物质,是细胞的控制中心;
(3)图中[4] 线粒体为生命活动提供__(21)__;
(4)图中[5] __(22)__、[6] _(23) _和[7] _(24) __为植物细胞所特有的结构,其中[7] __(25)__能制造有机物,贮存能量;