温度高于1500℃时渣铁全部熔化,滴落经()层进入炉缸。
参考答案:焦炭
用since 和for 填空。
1. The German teacher has worked in China _____ quite a few years.
2. Dick has worked as a taxi driver _____ about ten years.
3. Helen has worked as a shop assistant _____ 1992.
4. We have studied English _____ about five years.
5. They have studied French _____ 1990.
6. Hans has made a lot of friends _____ he came to China.
7. _____ last January, the city has developed its telephone services swiftly.
8. I have been a Youth League Member (青年团员) _____ two years.
手术治疗中一般病人知情权不包括()
A.有权自主选择
B.有同意的合法权利
C.有明确决定的理解力
D.有家属代为决定的权利
E.有做出决定的认知力