问题
多项选择题
分子筛法是压缩天然气常用的高效脱水剂，分子筛脱水的主要优点有（）。
A、可以使气体深度脱水；
B、在较高温度下，也能有效地干燥气体；
C、能够选择性地吸收；
D、不易被液态水破坏.
答案
参考答案：A, B, C, D
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分子筛法是压缩天然气常用的高效脱水剂，分子筛脱水的主要优点有（）。
A、可以使气体深度脱水；
B、在较高温度下，也能有效地干燥气体；
C、能够选择性地吸收；
D、不易被液态水破坏.
参考答案：A, B, C, D
| 阅读理解。 |
| It was a Monday morning. As the teacher walked into the classroom, he heard a low voice (低声), "Here's the teacher. I'm sure this boring fellow (家伙) is going to talk about how to use commas (逗号)." It was a boy's voice and the teacher knew who he was. However, the teacher didn't get angry. He said nothing about it, but really began to talk about how to use commas And then he wrote the following sentence on the blackboard, "Nick says the teacher is a boring fellow." The class laughed and Nick's face turned red. "Now," said the teacher, "I'll tell you the importance of commas." He put two commas in the sentence, and then read, "Nick, says the teacher, is a boring fellow." The whole class laughed again. Nick felt very surprised first, then his face much redder. Finally he couldn't help (情不自禁) laughing with the other students, too. |
| 1. What subject did the teacher teach the students? |
[ ] |
| A. Math B. English C. Music |
| 2. What kind of boy was Nick like? |
[ ] |
| A. A tall boy B. A healthy boy C. A funny boy |
| 3. I think Nick liked to have ______ lessons. |
[ ] |
| A. boring B. interesting C. no |
| 4. "Nick says the teacher is a boring fellow." is ______ "Nick says the teacher, is a boring fellow." in the meaning. |
[ ] |
| A. the same as B. kind of different from C. quite different from |
| 5. What do you think of the teacher? He is very ______. |
[ ] |
| A. boring B. good C. bad |