ACTH的分泌有明显的昼夜节律性波动，分泌最多是在：

A．入睡时

B．午夜

C． 清晨觉醒起床前

D．上午

E．下午

    --- Hurry up! The bus is coming.

--- Wait a minute. Don’t cross the street        the traffic lights are green.

A．after

B．until

C．while

D．Since