煤气可分为以下()三种。
A、高炉煤气
B、焦炉煤气
C、高、焦炉煤气
D、转炉煤气
参考答案:A, B, D
根据释义写出单词。
1. s______ family name
2. a______ to receive (something offered),especially with gladness
3. w______ put paper round something
4. b______ one and the other
5. e______ get money from doing sth.
6. c______ to place something upon or over
7. r______ what you must, or mustn't at school etc.
8. a______ no matter what thing
计划的形成过程是一种()的形成过程。
A、存在
B、物质
C、精神
D、意识