下面是某兴趣小组探究教室里是否有细菌和真菌的实验方案，请你帮助设计完成

材料用具：1号和2号装有牛肉汁培养基的培养皿（已高温灭菌）、透明胶带、放大镜．

一，提出问题：教室里的空气中是否有多种细菌和真菌？

二，作出假设：教室的空气里有细菌和真菌．

三，制订计划并实施：

①1号培养皿的处理方法：打开培养皿，暴露在教室的空气中5﹣10分钟，再盖上，封好；2号培养皿不做处理，在实验中起____作用．

②把两个培养皿放在____的地方．

四，观察结果，得出结论：

①1号培养皿的现象：____．

②2号培养皿的现象：无菌落形成．

③你的结论是____．

通过以上实验可知，细菌和真菌适合于生活在____的环境中．

A：Wait a moment，Wang Lin. I have something exciting to tell you.

B：____

A：I made a new friend today. His name is Frank. He comes from America.

B：That's great！____

A：He is thin，but he looks strong.

B：____

A：He is as tall as I．But he is more athletic than I.

B：____

A：You are right. He said he would teach me how to play basketball.____

B：I'd love to. Thank you!

A．Would you like to make friends with him?

B．Frank is the same as me.

C．What does he look like?

D．Is Frank tall or short?

E．He is very quiet.

F．I think he likes sports very much.

G．What is it?

常温下，用0.1000 mol·L^－1 NaOH溶液滴定20.00 mL 0.1000 mol·L^－1 CH₃COOH溶液所得滴定曲线如下图。下列说法正确的是