下列水溶液一定呈中性的是 A．pH=7的溶液 B．c(H+)=1.0×10-7m

根据句子意思及汉语提示，写出所缺的单词。

1. Oh, I have   ▲   (忘) my key in the room, we can't open the door.

2. Though he lives alone, he has a lot of friends and doesn't feel   ▲  (孤独的) .

3. Mrs. White smiled   ▲  (幸福地) when she received a present from her daughter on Mother's Day.

4. As we all have grown up, we should learn to look after   ▲   (自己).

5. Everybody knows the   ▲   (重要性) of doing exercises, but few can keep doing it.

宏观调控中，政府的经济职能有()。

A、矫正市场失灵

B、对收入进行再分配

C、稳定经济并进行长期经济增长

D、对市场经济进行行政干预

E、制定和执行国际经济政策

物质自一种状态骤然转变到另一种状态，并在释放出大量能量的瞬间产生巨大声响及亮光的现象称为燃烧。

当细胞匀浆化被破坏后，内质网断裂成许多封闭小泡，被称为（）

A.线粒体

B.微粒体

C.溶酶体

D.残余小体

E.运输小泡

我国《宪法》规定，对于公民的申诉、控告或者检举，有关国家机关( )，负责处理。

A．必须认真对待

B．必须查清事实

C．应当根据不同情况

D．必须及时回复