①把根尖放入质量分数为15%的盐酸和体积分数为95%的酒精的混合液（比例1：1）中  ②根尖酥软后，取出漂洗  ③用镊子把根尖弄碎  ④把根尖放入载玻片的清水中，盖上盖玻片，再放一载玻片，用拇指轻压  ⑤染色

A：Hi，Bill！____.

B：Yes.I've already finished my homework.

A：____.

B：I'd like to work outside.

A：Me，too！____.

B：I'd like to do something to help others.Would you like to go with me?

A：Sure！Let's come up with a plan.____.In the afternoon we can visit the children's hospital to cheer up the sick children.What do you think?

B：____. But we had better join the school weekend volunteer program.

A：Good idea！We could do better then.

我们每个人都应该有责任感。社会责任感的集中表现是（    ）

对我国村民委员会认识正确的是（   ）。