更多“皮带逆止器失灵的原因有哪此?处理步骤是什么?”相关的问题
票据的功能有()
A . A、汇兑功能
B . B、支付功能
C . C、信用功能
D . D、流通功能
E . E、融资功能
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场地内配备供电、电信与有线电视广播的设施,须了解( )。
A.低压电器设备情况
B.电源位置
C.可供电量
D.线路敷设方式
E.接线距离
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90.[1 分]乳腺癌术后是否选择内分泌治疗的主要依据是A:是否绝经B:病理类型C:手术方式D:ER、PR 表达E:患者的愿望
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下列属于审计结果公告主要内容的有()
A.被审计单位的基本情况和审计评价意见 B.审计发现的主要问题 C.审计处理情况和建议 D.加强预算管理的意见 E.审计发现问题的整改情况
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主动授权业务(UGS)用于传输固定速率实时数据业务,如没有静默压缩的VoIP业务。
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关于肝癌的影像学表现的描述,错误的是
A.肿瘤以膨胀性生长为主的病灶增长较慢
B.肿瘤呈浸润性生长一般无包膜形成
C.肝癌结节 中可形成坏死或偶见脂肪成分
D.肝癌低密度区增强门静脉期可呈高密度
E.肝癌的血供75%来自肝动脉
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用单向琼脂扩散法检测时,沉淀环的大小与样品内抗原的含量成
A.反比关系
B.对数关系
C.直线关系
D.正比关系
E.正弦关系
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给水系统包括生活给水系统、生产给水系统和水()给水系统。
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重复性保险装置在电路短路或过载时会自动断开,若需再使电路接通。甲说:自动型的需手动复位,乙说:手动型的不需手动复位;谁说的对?()
A.只有甲对
B.只有乙对
C.两人都对
D.两人都不对
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高压蒸汽灭菌法的原理是用饱和水蒸汽在高温高压下杀死细菌,温度与压力成正比,压力越大温度越高,一般常用的蒸汽压力为()温度可达121~126摄氏度,维持30分钟即能杀死包括细菌芽胞在内的一切细菌,是目前最有效的一种灭菌方法
A . 0.5kg/cm2B . 1.05~1.40kg/cm2(102.97~137.29kpa)C . 5kg/cm2D . 15kg/cm2
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单位存款按资金性质和计息范围的不同划分为()
A.财政性存款B.一般性存款C.结构性存款D.外汇存款
B.一般性存款C.结构性存款D.外汇存款
C.结构性存款D.外汇存款
D.外汇存款
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最高管理者在质量管理体系中的作用包括( )。
A.建立组织的质量方针和质量目标
B.确保最后的丰厚的利润回收
C.确保整个组织关注顾客要求
D.确保实施适宜的过程以满足顾客要求并实现质量目标
E.确保建立、实施和保持一个有效的质量管理体系以实现这些目标
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关于原始宗教的特点,下列选项错误的是()。
A . 没有特定的时间段
B . 多神崇拜
C . 没有神职人员
D . 没有摇篮问题
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Part A Read the following four texts. Answer the questions below each text by choosing [A], [B], [C] or [D]. Mark your answers on ANSWER SHEET 1.Text 1 We often hear advice from the dermatologists, "You should keep using sunscreen cream--just to be safe". More and more people are questioning about sunscream. Can sunscreen cream help protect me against melanomas How safe are we in applying these chemical cocktails Does it actually stop melanomas, the most dangerous type of skin cancer, from forming As is known to all, sunscreen cream can protect the skin from the harmful effects of sun. The most .important function of it is the prevention of skin cancer. A great number of American people like to use it. Surprisingly, this kind of cancer is increasing in incidence faster than any other cancer in the United States. It seems that sunscreen actually increases the risk of skin cancer. More and more health experts are taking a discommendable attitude to the application of sunscreen. Researchers show that the earlier finding has many flaws and is unable to prove the exact function because they fail to take into account many exceptional cases. For instance, some people prefer to use sunscreen cream while going out. However, sunscreen cream users suffer from cancer more often. In fact, sunscreen cream allows people to remain exposed in the sun longer. People are likely to get skin problem under the sunshine for a long time. Besides, many people use the sunscreen cream in an inappropriate way. The sunscreen cream should be applied about half an hour before going outside, so the time is enough for the sunscreen to soak in and take effect. In fact, the protection of sunscreen will not last indefinitely. It should be reapplied at least every two hours when people stay outdoors for a prolonged period. After swimming, bathing, perspiring heavily, or drying off with a towel or handkerchief, you had better reapply it, too. Millions of gallons of sunscreen cream are consumed each year. Only 5% of products overall met the criteria for safety and sunscreen effectiveness. Three of five brand-name products can not protect the skin from sun damage sufficiently or they contain hazardous chemicals, according to a report by Environmental Working Group (EWG). It is time to change our misunderstanding now. In fact, besides the sunshine-preventing function, it also has the function of protecting our skin. We all know that the sun impacts collagen production in the skin, and without collagen, skin won’t naturally maintain that plump, moist, youthful, wrinkle-free look. Without the protection of sunscreen cream, just a few minutes of daily sun exposure over the years can cause noticeable changes in skin. Sunscreen cream can protect our skin from these damaging rays, so that even if we do spend time outdoors, our face is less likely to give away our age.
A.Sunscreen cream is essential in people’s life.B.The dermatologists prefer to attribute the skin problems to sunshine.C.People agree with the dermatologists’ opinion on using sunscreen cream.D.Sunscreen cream actually increases the risk of skin cancer.
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