在装填加氢催化剂前,若发现直径小于0.85mm的催化剂和细粉含量大于0.5m%时,则应在装填前重新过筛。
参考答案:对
根据句意和首字母提示填入所缺单词。
1. His father likes to watch TV in the e_____.
2. The last day of a week is S_____.
3. You need to have b_____ and go to school.
4. I eat breakfast at a_____ 7:30 in the morning.
5. I must do my h_____ before I go to bed.
6. He u_____ runs at 7:00.
7. My mother g_____ up early.
8. Which bus do you want to t_____?
9. It's time for you to brush your t_____.
10. Classes s_____ at 8:00.
为了解区域自然地理特征并认识自然地理环境对人类活动的影响,某地理实习小组在美国西部地区进行了野外考察。下图提供的是考察路线(R地→旧金山→盐湖城)及周边区域自然地理环境的相关信息。读图回答问题。
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(2)根据内华达山脉(中部)地形剖面图,分别比较B处与A、C两处年降水量的大小,并说明理由。
(3)运用水循环的相关知识,解释大盐湖由淡水湖演变为咸水湖的原因。