焦粉、沥青、粘土是炉前用耐火材料最基本的原料组成。
参考答案:对
用所给单词的适当形式填空。
1. What's (she) telephone number?
2. Let's (play) volleyball.
3. Tom only (watch) sports on TV.
4. She has chicken, (tomato) and French fries for dinner.
5. ED Smith______(not have)a tennis.
6. Are (that) your pencils?
7. Alan and I (be) friends.
8. Does your father (have) a tennis racket?
9. That (sound) good.
10. Jenny doesn't like bananas but her brother likes (it) very much.
对建设项目的特点表述正确的是( )。
A.建设周期短,投资规模大
B.技术方案的取舍由经济效果决定
C.建设周期长,投资规模大
D.以人为本,重视劳动安全
E.坚持合理利用资源,节约能源