跳汰机的长度决定着物料经历分选的时间,分选时间越长,分选精度越高。
参考答案:对
单词拼写
1. His house was completely_______(破坏,毁坏)in theearthquake,which made him homeless.
2. Females find it____(极度地)difficult to get a job in such a field.
3. Many people were killed or________(受伤)during the earthquake.
4. Hundreds of people are still in the water,waiting to be ____(营救,援救).
5. After the battle they_______(埋葬)the dead.
6. She____(表达)surprise when I told her how much it was.
7. ____(祝贺)on your new job!
8. The dog looks____(令人恐惧的).
9.____(判断)from his accent,he is an American.
10. Yushu lay in______(废墟)after the earthquake.
除正在接受全日制驾驶职业教育的学生外,申请增加大型客车准驾车型的,应当取得驾驶城市公交车、中型客车或者大型货车准驾车型资格()以上,并在申请前最近连续五个记分周期内没有满分记录。
A.一年
B.两年
C.三年
D.五年