新生儿易发生溢乳的最主要的生理原因是
A．幽门括约肌发育不良B．贲门括约肌松弛C．新生儿爱哭闹D．哺乳量过多，胃过度充盈E．胃蠕动过快
参考答案：B
It was ____ he did ____ mattered.[ ]
A. what; that
B. that; that
C. what; what
D. that; what
