锰在炼钢过程中氧化特点是什么？

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

It is not so easy to disagree with your parents．Here are a few quick tips on how to show your opinion in the right way．

小题1: Don’t let angry words fly out of your mouth if you don’t really want to say them，or you will have a lot of work to do later．

小题2: How would you feel if you were your mother or father? Why do they do that? Is it really bad?

Try to stay calm．If you find yourself getting too angry, ask for softie time Io be alone．小题3:

Learn to listen．Maybe your parents aren’t as persuasive(具有说服力的)as you think.小题4: 

Pay attention to needs rather than problems 小题5: Tell your parents that you want to discuss the problem with them rather than work against them．

A．Think before you speak．

B．Never listen to your parents

C．Think about the problem from your parents’ point of view．

D．It is quite common to disagree with one’s parents．E．Hear them out and then decide how to deal with the problem．

F．Be clear about what you need，rather than focus on why you disagree．

G．If you can, try to discuss the problem with your parents at another time．

贫血可以多吃：

A．含铁质、钙质丰富的食物

B．含铁质、蛋白质丰富的食物

C．含钙质、蛋白质丰富的食物

D．含碘、蛋白质丰富的食物

低能者的智商为（）

A.＜50

B.＜70

C.＜90

D.＞100

E.＞120

如何制定饲草料生产和贮备计划？