属于胆碱能受体的是()
A.M、α
B.M、β
C.M、α、β
D.M、N1、N2
E.M、N、α、β
参考答案:D
脑动脉粥样硬化可引起下列哪些病变()
A.脑回变窄,脑沟变宽、变深
B.脑血栓形成
C.灶性脑软化及腔隙样坏死
D.广泛性脑实质内出血
E.蛛网膜下隙变大,脑脊液增多
A trip to the Antarctic is reasonably safe if you take the necessary precautions.()
A. within reason
B. rather
C. beyond doubt
D. doubly