根据短文内容及所给首字母提示，补全所缺单词，使短文意思完整、通顺。

     We are middle school students and we are busy with our lessons. Some people think we should

c__1__more on our studies. It's a w__2__ of time for us to volunteer to help others. But I think v__3__

is great. I not only feel good about helping others, but also get to s__4__ time doing what I love to do.

And by volunteering I have learned many things that I have n__5__ learned in class. So if  I have an

o __6__ , I'd like to visit an old people's home to c__7__up the old people there. I'd also like to help

s__8__ kids in hospitals. I love kids and I plan to put my love to good u_ 9 _  by working in hospitals.

In a word, I'd like to help people who n _10__ help. If everyone helps out a bit, the world will become

more colorful.

足月新生儿是指（）

A.孕龄满37周至不足42周，出生体重≥2500g的新生儿

B.孕龄满37周至不足42周，出生体重>2500g的新生儿

C.孕龄满37周至不足42周，出生体重≥3000g的新生儿

D.孕龄满38周至不足42周，出生体重>2500g的新生儿

E.孕龄满38周至不足42周，出生体重≥2500g的新生儿