翠鸟鸣声清脆，爱贴着水面疾飞，一眨眼，又轻轻地停在苇秆上了。它一动不动地注视着泛着微波的水面，等待游到水面上来的小鱼。

$\cos 43°\cos 77°+\sin 43°\cos 167°$的值为（   ）

第一届全国人民代表大会制定的《共同纲领》，是我国第一部社会主义类型的宪法。 （   ）

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）每处错误及其修改均仅限一词；

2）只允许修改10处，多者（从第11处起）不计分。

    Time waits for no man. This is something I learned very clear last term. I spent so much time fool around that my grades began to fall. I finally realize that something necessary had to done. It was time of a change.

    Now I have a new plan for using my time wisely. I have set my alarm clock ahead half a hour. This will give him a head start on the day. I have also been decided to keep a record of what I do and when I do it. Looking back on which I've done will give me some idea on how to rearrange my time.

某化学反应的微观示意图为：），关于该反应的说法正确的是（　）