问题
名词解释
岩层
答案
参考答案：
由两个平行或近于平行的界面所限制的岩性基本一致的层状岩体。
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岩层
参考答案：
由两个平行或近于平行的界面所限制的岩性基本一致的层状岩体。
| 从方框中选择最佳选项完成对话，有两项多余。 | |
B: Look at the sign, please. 1._____ A: 2._____ B: I' m afraid not. All the offices are nonsmoking areas. A: Oh, dear! 3._____ B: There is a smoking room on the first floor. Perhaps you can smoke there. A: Sorry. I 'm new here. 4._____ B: Sure. Follow me, please. I'm afraid smoking is bad for your health. You'd better give it up. A: 5._____I'll think about it. 1._____2._____3._____4._____5._____ |