保养搪瓷类物品应注意避免()

A、接触强碱

B、煮沸消毒

C、碰撞

D、粗糙物磨擦

E、接触强酸

查看答案

相关问题推荐

  • 肺心病的病员宜取()

    A、头高脚低位

    B、头低脚高位

    C、半坐卧位

    D、端坐位

    E、俯卧位

    查看答案
  • 睫状神经节

    查看答案
  • 什么叫暗适应?

    查看答案
  • 不属于易燃的物品是()

    A、乙醚

    B、氧气

    C、甲醛

    D、过氧乙酸

    E、环氧乙烷

    查看答案
  • 患者男性、50岁、左上臂脂肪瘤切除术后2天,更换上衣的合理步骤是()

    A、先脱左侧,后穿右侧

    B、先脱左侧,后脱右侧

    C、先脱右侧,后穿左侧

    D、先脱左侧,后穿左侧

    E、先脱右侧,后穿右侧

    查看答案
  • 技术改造应遵循的原则有()。
    A.
    以内涵为主扩大再生产
    B.
    把提高企业经济效益和社会效益结合起来
    C.
    把技术先进性、生产适用性、经济合理性结合起来
    D.
    要依据科技进步定期进行
    查看答案
  • 9,26,51,124,173,( )

    A216B294C295D316
    查看答案
  • Effective tough survive wrap foremost refrain obtain distinguish existence available

    1 The theory supposes the ( ) of life on other planets .

    2 Would you please ( ) the toys up separately ?

    3 He built up a reputation as a ( ) businessman .

    4 There is no ( ) treatment of this disease .

    5 some rooms are ( ) to the doctors who are at the virus - control front line .

    6 The salesman finally managed to ( ) a copy of the report .

    7 It is hard to ( ) one twin from the other .

    8 Many companies managed to ( ) the pandemic .

    9 We have ( ) from going outside during the pandemic .

    10 This is first and ( ) a trade agreement.
    查看答案
  • 古典管理理论不相信管理是有规律可循的他们更相信个人经验
    查看答案
  • “战场”和“战士”这两个概念是()

    A.属种关系

    B.交叉关系

    C.全异关系
    查看答案