预防地方性甲状腺肿最方便、经济、有效的措施为（） A.口服碘油丸 B.食盐加碘 C.

这是Peter的教室,请你根据以下提示,写一篇不少于50字的书面表达.赶快行动起来吧，你就要成功了。(共10分）

提示：

1、Peter的教室既干净又漂亮。

2、墙上有两块黑板和六扇窗户。

3、黑板上有十九个数字和三幅图画。

4 、教室内有十三张课桌和二十六张椅子。

5、 桌子上有一些橡皮和许多铅笔。

肝癌术前护理不正确的是

A．给予维生素K1
B．术前晚用肥皂水灌肠
C．适量输血和白蛋白
D．全面检查肝功能和凝血功能
E．术前3天口服肠道不吸收的抗生素

补全对话。根据上下文把下面的对话补充完整。

A: What are you going to do after the exams?

B: 1__________________. Do you have any good ideas?

A: Yes, I went to relax myself. So I want to go on a trip.

B: Sounds great! 2__________________?

A: I'd like to go somewhere interesting and exciting.

B: There is a new zoo in Changsha 3__________________?

A: No, I haven't. What about you?

B: 4__________________. But my cousin went there last

    week. He told me people could watch the animals there in

    a more natural environment.

A: Really? That sounds interesting. Let's go to the zoo together.

B: OK. We can go there by bus tomorrow.

A: 5__________________? It's not too far from here. And riding

    a bike is a kind of good exercise.

B: OK. I can't wait.

进出口国家垄断是指在对外贸易中，对某些或全部商品的进出口，规定由国家机构直接经营，或者是把某些商品的进口或出口的专营权给予某些垄断组织。（）

矿物的多相转变