根据对话内容，从对话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。

注意：AB="E" AC="F " AD=G

(J="Jim " D=David)

J: Hi, David. How are you? .

D:  小题1:

J: What are you going to do next weekend, David ?

D: 小题2: How about you ?

J: I don’t know, either.

D: 小题3:

J: Good idea! But where shall we skate ?

D: The lake near our school gate is icy now .Let ’ s skate there .

J：All right.小题4:

D: Let ’ s meet at the school gate .

J: 小题5:

D: Let ’ s meet at nine o ’ clock .

J: Great See you next Saturday

D: See you.

Ａ.Where shall we meet ?

.   B. Fine, thank you .

C. What time shall we meet ?

D. How about skating on Saturday ?

E. That ’s great. I agree with you .

F. I have no idea .

G. I ’ m going to visit my grandparent .

如图为A、B、C三种物质的溶解度曲线，回答下面问题：

（1）t₁℃时，A、C饱和溶液的溶质质量分数______（填“＜”、“=”或“＞”）．

（2））t₃℃时，等质量的A、B、C的饱和溶液降温至t₁℃，析出晶体最多的是______，变成不饱和溶液的是______．

（3）t₃℃时，A、B、C的饱和溶液降温至t₁℃，三种溶液的溶质质量分数大小关系是______．