突触前抑制的特点是
A.突触前膜超极化
B.潜伏期长,持续时间长
C.突触前轴突末梢释放抑制性递质
D.突触后膜的兴奋性降低
E.通过轴突—树突突触结构的活动来实现
参考答案:B
An analyst does research about the put-call parity. With respect to the put-call parity, which of the following positions is equal to a synthetic call position()
A. Long a put, long the underlying, and short a risk-free bond.
B. Short a put, long the underlying, and short a risk-free bond.
C. Long a put, short the underlying, and long a risk-free bond.
由理货公司或现场理货员编制,用于指导卸货港卸货工作的配积载图为()。
A.计划配载图
B.实际积载图
C.现场记录
D.理货报告