硬脊膜属于（）。
A.脑屏障
B.脑的血管
C.脑的被膜
D.脊髓的血管
E.脊髓的被膜
参考答案：E
岗位薪酬制的最大特点就是薪酬的给予（）
A.“人岗相结合”
B.“对人不对岗”
C.“对岗不对人”
D.“人岗相分离”
.Modern agriculture has greatly developed and nowadays animals are usually raised in _____ we call factory farms. As a result of this, lots of labour is saved.
A．which
B．where
C．what
D．how
