()是使有效的教材发挥功效的最直接的环节。
参考答案:教学程序
— I heard that as many as 100 people were killed in the disaster.
— Yes, _____ news came as _____ shock to me. [ ]
A. the; a
B. 不填; the
C. the; 不填
D. the; the
全麻药对电压门控钙通道的影响主要是()
A.抑制钙内流
B.促进钙内流
C.促进钙失活
D.抑钙外流
E.抑制钙分泌