根据短文理解，选择正确答案。

    We know the mosquito very well. Mosquitoes fly everywhere. They are almost all over the world, and there are more than 2, 500 kinds of them.

No one likes the mosquito. But the mosquito may decide that she loves you. She? Yes, she. It's true that the male mosquito doesn't bite and only the female mosquito bites because she needs blood to lay (产) eggs. She is always looking for things or people she wants to bite. If she likes what she finds, she bites. But if she doesn't like your blood, she will turn to someone else for more delicious blood. Next time a mosquito bites you, just remember she chooses you. You're different from the others!

    If the mosquito likes you, she lands on your body without letting you know. She bites yon so quickly and quietly that you may not feel anything different. After she bites, you will have an itch (痒) on your body because she put something from her mouth together with your blood. By the time the itch begins, she has flown away.

And then what happens? Well, after the delicious dinner, the mosquito feels tired. She just wants to find a place to have a good rest. There, on a leaf or a wall, she begins to lay eggs, hundreds of eggs.

王勃劝友人不要在离别时悲情伤感，作儿女之态是句子是：____，____。

现有一包氯化钠固体，其中混有少量的硫酸钠和氯化镁，可通过以下实验除去杂质得到纯净的氯化钠．请将正确合理的操作顺序填入括号中，并简要回答（1）～（3）题．

　③　在溶液中加入稍过量的碳酸钠溶液，然后过滤．

　②　加入稍过量的氯化钡溶液，然后过滤．

　⑤　在滤液中加入稀盐酸至溶液呈中性．

　①　将混有杂质的氯化钠完全溶解于水．

　⑥　蒸发结晶．

　④　在滤液中加入稍过量的氢氧化钠溶液，然后过滤．

我会拼(看拼音,写词语)。