产褥期的生理特点是( )
A.阴血骤虚B.阴血骤虚,阳气易浮C.气血骤虚D.血藏不足,气易偏亢E.以上均不是
参考答案:B
Write "Yes" or "No". 下列说法对吗?对说“Yes”,错说“No”。
( ) 1. A duck has wings.
( ) 2. Pandas live in a tree.
( ) 3. Giraffes eat leaves.
( ) 4. A rabbit has two long ears.
( ) 5. A cashiser works in a school.
( ) 6. A lion has a pouch.
风管按照风压力可以分为低压、中压、高压,其中高压的工作压力临界点为()PA。
A、300
B、400
C、500
D、1500