问题
名词解释
“V”型谷或称峡谷
答案
参考答案：
由于坡度陡，水流急，河流产生较强的下蚀作用，将山谷侵蚀呈“V”型的河谷地貌，这种谷地边坡陡峻，坡度高达70°以上。
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“V”型谷或称峡谷
参考答案：
由于坡度陡，水流急，河流产生较强的下蚀作用，将山谷侵蚀呈“V”型的河谷地貌，这种谷地边坡陡峻，坡度高达70°以上。
| 从方框里选择正确的短语，并用其正确的形式填空。 | |
2. He____ losing his own life and saved my life in the cold river. 3. Finally,she____a pink dress. 4. Having moved to the northeast of China, I must ____ the dry weather. 5. The advertising campaign didn't____ on sales. 6. I____a cup of hot tea in the cold winter every evening. 7. 50 million Americans are thought to ____nicotine. 8. ____circumstances beyond our control the lecture was cancelled. 9. He____ smoking following his father's example. 10.They kept going____ their fears. |