(单选题)3: No matter how frequently _______, the works of Beethoven always attract large audiences. A: performing B: performed C: to be performed D: being performed ...
(单选题)16: ( ) have known each other for a long time. A: He and I B: He and me C: I and he D: I and him ...
(单选题)23: Today is March (). A: 1st B: 1nd C: 1th D: 1s ...
(单选题)17: After a fire broke out in the lab, a lot of equipment . A: is damaged B: had damaged C: damaged D: was damaged ...
(单选题)11: She believes to be a servant is her( ). A: fact B: destiny C: living D: live ...
(单选题)5: The class starts ( ) a joke. A: with B: in C: at D: of ...
(单选题)24: 两个点电荷相距一定的距离,若在这两个点电荷联线的中垂线上电势为零,那么这两个点电荷() A: 电量相等,符号相同 B: 电量相等,符号不同 C: 电量不等,符号相同 D: 电量不等,符号不同 ...
(单选题)18: 一定量的氢气和氧气,都可视为理想气体,它们分子的平均平动动能相同,那么它们分子的平均速率之比为() A: 1:16 B: 16:1 C: 1:4 D: 4:1 ...
(单选题)12: 质点作直线运动,其角动量()为零。 A: 一定 B: 不一定 ...
(单选题)6: 物体作曲线运动时()有加速度。 A: 一定 B: 不一定 ...