阅读理解：(相符打√，不符打×)。

     Lily is a student of NO. 16 Middle School . She's good at English. Her teacher likes her very much.

She often lets her show the visitors around. Lily likes doing that. She often introduces the class building,

the library, the computer room and the music club to them. She likes her school a lot.

( )Lily is a teacher.

(     )Lily enjoys speaking English.

(     )Lily doesn't like show the visitors around.

(     )She often introduces the dance room.

已知钢筋混凝土矩形截面梁，截面尺寸为b×h=250mm×500mm，C25混凝土，纵筋用HRB335级钢筋，箍筋用HPB235级钢筋，a_s=35mm。

设该梁承受的扭矩设计值T=15.0kN·m，弯矩设计值M=105kN·m，剪力设计值V=80.0kN，则下列判断正确的是（）。

A．仅按受弯构件的正截面受弯承载力和纯扭构件的受扭承载力分别进行计算

B．仅按受弯构件的正截面受弯承载力和斜截面受剪承载力分别进行计算

C．按受弯构件的正截面受弯承载力和剪扭构件的受剪扭承载力分别进行计算

D．按受弯构件的正截面受弯承载力和斜截面受剪承载力及纯扭构伺：的受扭承载力分别进行计算