问题
单项选择题
本流程清除少量CO+CO2选用甲烷化法，其原因中不正确的是（）。
A.甲烷化法成本低，铜洗法成本高
B.甲烷化法工艺简单，铜洗法工艺复杂
C.铜洗法达不到合成原料气CO+CO2含量要求
D.甲烷化法操作方便，铜洗法操作复杂
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
本流程清除少量CO+CO2选用甲烷化法，其原因中不正确的是（）。
A.甲烷化法成本低，铜洗法成本高
B.甲烷化法工艺简单，铜洗法工艺复杂
C.铜洗法达不到合成原料气CO+CO2含量要求
D.甲烷化法操作方便，铜洗法操作复杂
参考答案：C
完型填空（共20小题；每小题1.5分，满分30分） 阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。 Tried and exhausted, I came back home from work. I found the front door was 36 open and I felt a little scared. Did I carelessly forget to lock it after I left? I looked around 37 to see what could be 38 . Why would someone come into my home only to 39 with nothing? After searching every inch, I realized that everything was 40 I had left it. No 41 cushions, broken lamps, or 42 emptied out on the carpet. Feeling much 43 . I looked out my oversized window of my dinning room at Ms. Sullivan’s house. Jimmy, the little boy next door was visiting her. Jimmy cared a lot about Ms. Sullivan and was very concerned with her health after she became ill. She used to 44 Jimmy when he was just a baby. Forgetting about the 45 with my front door, I decided to walk over to Ms. Sullivan’s house to see how she was 46 . With a warm hello, she invited me into her home. I noticed twelve beautiful roses delicately presented on the table next to her bed. They looked exactly like the 47 on my dinning room table in front of my oversized window. With a pleasant smile, she told me Jimmy brought them to her as a “get-well gift”. Suddenly Jimmy 48 out of his seat in an instant and said that he had to go home for a while to do some homework but he promised to be back to 49 up on Ms. Sullivan. Talking for a while, Ms. Sullivan began to get very tired so I gave her my phone number in case she 50 needed help, and left her home. I thought about how 51 it was for little Jimmy to be so concerned for Ms. Sullivan. I got home, laughing at how 52 I was that morning about what had happened over 53 . I walked passed the dinning room and noticed my roses 54 in the vase were missing. Without a second 55 , I glanced out the window at Ms. Sullivan’s house and with a smile on my face I turned off the light in the room and went to sleep. The next morning my door bell rang. I opened the door Jimmy was there…
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