问题
单项选择题
若出现闭锁料斗出现慢速装料的现象，则应该（）。
A、观察差压是否波动大
B、检查氧含量是否平稳
C、减少二次气量
D、减少一次气
答案
参考答案：A
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若出现闭锁料斗出现慢速装料的现象，则应该（）。
A、观察差压是否波动大
B、检查氧含量是否平稳
C、减少二次气量
D、减少一次气
参考答案：A
| 阅读短文，选择合适的词填空： | |
My name is Jay. I'm an 1_______ boy. I'm twelve years old. My 2_______ is in London but now I'm in Beijing with my 3_______. I want some English or American friends. Are you Americans? I'm a student in Beijing No. 1 Middle School. I'm in Class Four. My classmates (同学) are all Chinese. They love me and 4_______after me. My English teacher is Miss Wang. She's very young. She's a nice girl. I 5_______ her very much. Yours, Jay |