单项选择题 下面哪部作品是以日记体的形式所写的社会心理小说？ A、《当代英雄》 B、《叶甫盖尼·奥涅金》 C、《谁之罪》 D、《奥勃洛摩夫》

单项选择题 In the following cases, ( ) belongs to pure bending. A、The external loads act on the longitudinal symmetric plane of the member; B、The members are only bent without torsion and tension deformation; C、The load on the member is only concentrated couples; D、There is no shear force on each cross section of the member, and the bending moment is a constant.

单项选择题 2.5巴氏消毒法的温度和时间是：