机制砂
参考答案:
是由碎石及砾石经反复破碎加工至粒径小于2.36mm的部分,也称人工砂。
据《素问·热论》,巨阳为诸阳主气,是因其脉连于()
A.风池
B.风府
C.百会
D.大椎
E.阳维
用所给单词的适当形式填空。
1. It is __________ (possible) for me to finish the work today. I need another day to do it.
2. This is our new classroom __________ (build). There are eighteen classrooms in it.
3. The famous __________ (science) Qian Suesen died of illness on October 31, 2009.
4. I __________ (think) he could come to my party, but now I know I was wrong.
5. No one taught me. I learnt it all by __________ (my).