患者，女，37岁，公务员，一年前因情志不遂，月经时而提前，时而错后，经血量亦多少不定

分部分项工程量清单的项目编码采用12位阿拉伯数字来表示，其中( )位是全国统一的编码。

A．11

B．10

C．9

D．8

期待包括______期待和______期待。

目前临床上主要采用的牙种植体为（）

A.黏膜内种植体

B.骨膜下种植体

C.骨内种植体

D.根管内骨种植体

E.以上均不是

文件处理程序是指什么？

There were 36,000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold, 9 times as many paperback copies as hardback copies were sold, if a total of 441, 000 copies of the novel were sold in all, how many paperback copies were sold ？（）

A．45,000

B．360,000

C．364,500

D．392,000

E．396,900