问题
多项选择题
蒸汽中断,甲醇合成单元正确处理有()。
A、切除合成气
B、开汽包排污阀,调节汽包液位
C、开汽包上水副线阀,调节汽包液位
D、系统卸压
答案
参考答案:A, D
蒸汽中断,甲醇合成单元正确处理有()。
A、切除合成气
B、开汽包排污阀,调节汽包液位
C、开汽包上水副线阀,调节汽包液位
D、系统卸压
参考答案:A, D
Henry and Bill are good friends, but they never see each other. They come from____countries. Henry is from the USA, and Bill is from England. They both have computers and often talk on ____. Now they are talking about how to ____in good health. Henry thinks doing exercise is good ___his health. He plays many kinds of sports ____the house. But he doesn’t think _____exercise is good. He also thinks good eating habits are important. Vegetables fruit _____his favorite. He never eats junk food. He says, “Most kids love it, ____i don’t.” Bill agrees with Henry. He often plays sports and eats ____food. He thinks _____enough water every day is good for his health. 小题1:A. same B the same C. different D. difference
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