在数控程序中,辅助功能M04指令表示()
参考答案:主轴反转
根据句意,用括号内所给词的适当形式填空。
1. I think everyone has two________(foot).
2. The old man has a serious________(ill).
3. Mr Chen is often________(stress) out.
4. It's easy to stay________(health).
5. My brother's________(speak) Chinese is very good.
直肠脱垂的发病中主要与哪个因素有关:()
A.风邪
B.热邪
C.燥邪
D.气虚
E.血虚