PFM修复体是由下列哪一项在真空炉内烧结而成的修复体A．高熔瓷粉与镍铬合金 B．低熔

小明的爸爸从国外带回一盏护眼灯，其规格为“110V  25W”．要想在家中的照明电路正常使用，需______联一个______Ω电阻．

肯氏一类牙列缺损设计中，不能减小牙槽嵴力负担的措施是（）

A.排列瓷牙

B.减小人工牙颊舌径

C.扩大基托面积

D.减少人工牙数目，通常可少排第一前磨牙

E.加深面沟窝形态

1吨棉花比1000千克的铁重…______．

正确的词形填空。

1. Mr. Read is a very ______ (create) teacher.

2. Susan's flowers are ______( beautiful)of all.

3.More and more animals are in ______ (dangerous).

4. Your advice sounds ______(interest).

5. Our hospital is the third ______ (big)hospital in the city.

6. Yu Fei is one of the best ______(act ) in our class.

7. Doctor, I feel even _______( ill) after I had the medicine you gave me.

8. How many ______(child)are there in your family?

9. The watch is my ______(teacher).

10. I would not do better in math ______(with) your help.

创造有益于儿童身心健康的文化环境。各类媒体要制作和传播有益于儿童健康成长的信息，增强文化产品的（）。

A、知识性、科学性

B、趣味性、多样性

C、知识性、趣味性