(单选题)3: It is universally______ that dogs have an acute sense of smell. A: acknowledged B: known C: admired D: admit ...
(单选题)22: -- How do you get on with your classmates? --____________. A: Very well B: Well done C: That's OK D: I'm well ...
(单选题)16: The low salary is her_____reason for leaving the job. A: principal B: principle C: punctual D: professional ...
(单选题)10: I have seen that this method had been_____by many people. A: applied B: demanded C: owned D: disagreed ...
(单选题)4: He came _____ some old photographs in a drawer. A: across B: in C: into D: around ...
(单选题)6: 某质点以角速度ω作半径为R的圆周运动,角加速度为β。则该质点的运动速率,法向加速度的大小与切向加速度的大小分别为: A: 运动速率 = Rω;法向加速度的大小 = Rω2,切向加速度的大小 = Rβ。 B: 运动速率 = R&omega...
(单选题)20: 温度为100°C时,理想气体分子的平均平动动能为ε ;欲使分子的平均平动动能等于1eV(1eV = 1.6×10-19 J ),气体的温度应达到T。则有 A: ε= 7.72 × 10 - 11 J ;T = 7.73 × 10 3 K。 B: ε= ...
(单选题)14: 其中:cp为气体的定压摩尔热容量,Ta和Tb分别表示状态a和b的温度。 A: A B: B C: C D: D ...
(单选题)2: 现有10g 氧气盛在容积为2 L 的容器内,压强为90.659 kPa ,则该氧气的温度为T ;单位体积的分子数为n 。它们的值分别为: A: T = 69.8 K ;n = 9.4 × 10 25 m – 3 B: T = 698 K ;n = 9.4 × 10 25 m – 3 ...
(判断题)22: 灾害伤病员分类使那些能从现场处理中获得最大医疗效果的伤病员得到优先处理,而不是首先处理那些最严重的伤病员。() A: 错误 B: 正确 ...