… such as making breakfast on dark, cold winter mornings for children    小题1:   and sleepy, before sending them off to school; or special occasions such as homecomings or    小题2:  .

It always    小题3:   the fullest and noisiest room in the house.

However, according to    小题4:  , the universe began with a “Big Bang” that threw matter    小题5:  .

It    小题6:  with fire and rock. They were in time to produce carbon, nitrogen, water vapor and other gases, which   小题7:  the earth’s atmosphere.

On my first morning in Toronto, I woke up early. Looking through the mist, I could just see the maple trees near    小题8:  . …After Liu Qian woke up, we went looking for    小题9:  . …We sat in a small booth to eat, enjoying the    小题10:   people around us.

膀胱（）

A.成人膀胱在充盈时呈锥体形

B.其最下部为膀胱底

C.黏膜上皮为变移上皮

D.膀胱底与前列腺相邻

E.膀胱三角位于膀胱颈