明代中叶以后，土地押租制流行。而佃农的佃权，即土地经营权，既是有偿取得，遂可以有偿转佃和出典。这反映了（    ）

在下列饱和溶液中分别持续通入CO₂，始终不会有沉淀或晶体析出的是 (　  　)

如图，正方形A₁B₁P₁P₂的顶点P₁、P₂在反比例函数y=$\frac{2}{x}$（x＞0）的图象上，顶点A₁、B₁分别在x轴和y轴的正半轴上，再在其右侧作正方形P₂P₃A₂B₂，顶点P₃在反比例函数y=$\frac{2}{x}$（x＞0）的图象上，顶点A₂在x轴的正半轴上，则P₂点的坐标为____ ，P₃的坐标为____ ．

用适当的词语补全对话，每空一词。

Clerk: ____ I help you?

Mary: Yes, please. I want a sweater.

Clerk: What ____ do you want?

Mary: Blue.

Clerk: Here you are.

Mary: How ____ is it?

Clerk: Nine dollars.

Mary: I'll ____ it. Thanks.

Clerk: You're ____.

选择下列词汇完成下面对话。并在答题卡上将相应的字母编号涂黑．

A. take   B. where   C. present   D. enjoyed   E. pleasure   F. broke down

A: Hello, Jim!
B: Hello, Wei Hua!
A: Thanks for inviting me to your birthday party yesterday evening. I ____ it very much.
B: Thank you for your nice present!
A: It was my ____ !
B: By the way, ____ are you going?
A: I’m going to see Uncle Wang. My radio ____  last week. I took it to him to repair yesterday. I'm going to get it back.
B: May I go with you?
A: Why not? His home is not far away from here. It'll____  us about ten minutes.
B: OK! Let's go.