胎盘血流的调节主要依赖下列哪项()
A.α受体
B.β受体
C.胆碱能受体
D.胎盘血PC02
E.胎盘血P02
参考答案:A
Much to my _______, most of the people ______ to the party were old friends.
A.astonishing; inviting
B.astonished; invitied
C.astonishment; inviting
D.astonishment; invited
以下不是膳食纤维的功能的是()。
A.防止便秘
B.降低胆固醇
C.防肠癌
D.刺激消化液分泌
E.降低血栓形式