【判断题】光纤通信中,与出射光纤耦合的光电元件选用光电池
【单选题】公开招标也称无限竞争性招标,是指招标人以()的方式邀请不特定的法人或者其他组织投标
【单选题】患者,男性,40岁,司机,既往体健,2个月前无明显诱因出现腰背部疼痛,休息时症状减轻,劳累时加重。3天前腰部扭伤后疼痛加剧并向左下肢放射。检查:腰部外观正常,弯腰活动受限,第4、5腰椎棘突上和棘突间有压痛。 此患者最可能的诊断是
【单选题】关于标准公差说法错误的是( )
A.
标准公差值得大小与公称尺寸和公差等级有关,与零件是孔还是轴无关。
B.
公称尺寸相同,公差等级越高,标准公差值越小。
【判断题】光纤通信中,与出射光纤耦合的光电元件选用光敏电阻
【判断题】免疫应答过程中白细胞间相互作用的细胞因子统一命名为白细胞介素英文简称IFN。
【简答题】给出下列生物药物的中文名称:IFN;TNF;IL;G-CSF;EPO;GM-CSF;r-SK;r-SAK;GH;EGF;bFGF;rhTPO;t-PA;SRM。
【单选题】Which of the following is the best example of writing that is likely to be subject to the kinds of 'handicaps' referred to in line 39?
A.
A history of an auto manufacturing plant written by an employee during an auto-buying boom.
B.
A critique of a statewide school-desegregation plan written by an elementary school teacher in that state.
C.
A newspaper article assessing the historical importance of a United States President written shortly after the President has taken office.
D.
A scientific paper describing the benefits of a certain surgical technique written by the surgeon who developed the technique.
E.
Diary entries narrating the events of a battle written by a soldier who participated in the battle.
【单选题】男性患者,58岁,休息时突然出现右侧肢体无力,继而出现呼之不应。查体:深昏迷,压眶无反应,左侧瞳孔大于右侧瞳孔,血压24/12kPa。治疗首先考虑
【单选题】公开招标也称无限竞争性招标,是指招标人以( )的方式邀请不特定的法人或其它组织投标。