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【单选题】
设某晶体管三个极的电位分别为UE=-13V,UB=-12.3V,UC=6.5V,则该 ( )。
A.
PNP型锗管
B.
NPN型锗管
C.
PNP型硅管
D.
NPN型硅管
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【单选题】医务人员工作时所采取的许多措施和使用的器材中,包含着许多物理知识,有关下列说法正确的是(  )
A.
医生用听诊器接听患者心跳和呼吸声音,能升高音调
B.
注射时针筒能抽取到药液,是因为药液受到针筒的吸引力作用
C.
喷洒消毒液后,过一会儿病房里闻到消毒液的气味,这是扩散现象
D.
医生夹取消毒棉擦伤口的镊子是省力杠杆
【单选题】低碳钢加载 →卸载→ 再加载路径有以下四种,如图所示,请判断哪一个是正确的:( )
A.
OAB →BC →COAB
B.
OAB →BD →DOAB
C.
OAB →BAO→ODB
D.
OAB →BD →DB
【单选题】{ 如图所示,低碳钢加载→卸载→再加载路径有以下四种,请判断哪一种是正确的 }
A.
OAB→BC→COAB
B.
OAB→BD→DOAB
C.
OAB→BAO→ODB
D.
OAB→BD→DB
【简答题】Although many people view conflict as bad, conflict is sometimes useful ________ it forces people to test the relative merits of their attitudes and behaviors. A) by which B) to which C) in that D) so...
【单选题】以下哪一条,不是系统规划方法的好处:
A.
获得最好发展
B.
充分利用资源
C.
让规划有序进行
D.
避免严重问题
【单选题】In intragroup conflict,
A.
sources of conflict can include ideas, thoughts, emotions, values, predispositions, or drives that are in conflict with each other.
B.
conflict occurs between individual people.
C.
conflict affects the ability of the group to resolve differences and continue to achieve its goals effectively.
D.
conflict is quite intricate because of the large number of people involved and possible interactions between them.
E.
None of the above describes intragroup conflict.
【单选题】下列说法符合原文意思的一项是( )。
A.
滥用抗菌药使得药物生产供不应求,医生手中掌握的药物已经越来越少
B.
现在,老一代抗菌药失去了原有作用,新一代抗菌药的质量则越来越差
C.
抗生素是一把“双刃剑”,它既能治疗疾病,又能促使新的疾病产生
D.
耐药菌的发展速度令人触目惊心,以致远远超过抗菌药的研制速度 查看材料
【单选题】Conventional wisdom about conflict seems pretty much cut and dried. Too little conflict breeds apathy (冷淡) and stagnation (呆滞). Too much conflict leads to divisiveness (分裂) and hostility. Moderate lev...
A.
wrong
B.
oversimplified
C.
misleading
D.
unclear
【判断题】塑件上的标记符号应放在分型面的平行方向上,并有适当的斜度以便脱模。 ( )
A.
正确
B.
错误
【多选题】下列药材中使用心材的是
A.
通草
B.
沉香
C.
钩藤
D.
苏木
E.
乳香
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