单选题
发布日期:2021-03-22
Ignition lag increases
Lube oil system pressure increases
Brake specific fuel consumption increased
Mechanical efficiency increaded
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肺结核病人可以享受免费抗结核病药物治疗吗?()
15的李某在一金额高达30万元的汇票上背书转让该汇票给某公司经理王某,后王某又将汇票背书转给郑某,事后不获承兑,郑某无权向王某追索。()
简述高中数学课程的基本教学目标。
如图所示,平行板A、B间有一匀强电场,两板间相距为d,A板接地.有一电子自A板正中的小孔以某一速度v0飞入电场,当电子到达两板中间位置(图中虚线位置)后返回,求: (1)A、B两板间电场强度的大小; (2)A、B板间的电势差及电子在中心线位置时所具有的电势能; (3)要使电子能通过B板上的小孔而穿出电场,电子的初速度v0′至少为多大?(电子电量为e,质量为m,不计重力影响)
患者,男,45岁。头痛半年,CT检查如下图。 最需与本病鉴别的肿瘤为()
按照《地面水环境质量标准》中的划分,适用于集中式生活饮用水水源地一级保护区、珍贵鱼类保护区、余下产卵场等的水质标准是()。
PT泵在结构上是以燃油泵()和喷油器进油时间对进油量的影响来控制供油量。
患儿入暖箱后,应定时测量体温,并做好记录。在患儿体温未升至正常之前应每小时监测_____次,升至正常后可每_____小时监测1次。注意保持体温在_____之间。
酮尿可见于()
常用的养生食药有哪几大类?
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