溴隐亭治疗帕金森病的作用机制是
A.减少多巴胺降解
B.抑制多巴胺再摄取
C.直接激动多巴胺受体
D.提高脑内多巴胺浓度
参考答案:C
There are about three _____ people watching the program, and _____ of'them are from foreign
countries. [ ]
A. million; two million
B. millions; two millions
C. million; two millions
D. millions, two million
我国自行研制的世界首艘万吨级医院船是:()
A、866船
B、832船
C、830船
D、881船