接近帕金森病病因治疗的药物是()。
A.苯海索
B.地西泮
C.左旋多巴
D.新斯的明
E.利血平
参考答案:C
When I took his temperature, it was two degrees above _____.
A.average
B.ordinary
C.regular
D.normal
斯金纳认为,人和动物的行为有两类:应答行为和 。