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【判断题】
世界上最早建立专利制度的国家是法国。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】对发动机冷却系统进行检漏,应对冷却系统加压,选用的工具为( )。
【单选题】不符合 肿瘤性增生的是
A.
生长旺盛，与整个机体不协调
B.
增生的细胞具有异型性
C.
细胞分化成熟能力下降
D.
可不形成局部肿块
E.
增生过程中需致癌因素持续存在
【简答题】机车高温冷却水系统为闭式加压冷却，它与柴油机内部冷却水系统构成统一的循环系统。整个高温冷却水系统的外界空气不通，只有当系统中的水汽压力大于规定值时，安装在膨胀水箱中的压力调节阀才会开启对系统的压力给予调节，使系统中始终保持在一定压力范围内工作，保证高温冷却的（）。
【简答题】阅读理解。 Every child has a dream of what they want to be, right? When Renee Butts was little, her dream was to become a volunteer firefighter because her father was one. Sadly, when she was 14, her fathe...
【单选题】对于常数据成员，下面描述正确的是( )。
A.
常数据成员可以不初始化，并且不能更新
B.
常数据成员必须被初始化，并且不能更新
C.
常数据成员可以不初始化，并且可以被更新
D.
常数据成员必须被初始化，并且町以被更新
【单选题】作用于刚体上的力可沿其作用线移到同一刚体内的任一点,,而不改变该力对刚体的效应,这个公理叫做( )。
A.
加减平衡力系公理
B.
力的可传性原理
C.
二力平衡公理
D.
作用力与反作用力公理
【简答题】阅读理解。 Every child has a dream of what they want to be, right? When Rence Butts was little, her dream was to become a volunteer firefighter because her father was one. Sadly, when she was 14, her fathe...
【单选题】Which of the following statements is true about user-generated content?
A.
It is driven by people and technology and does not require processes and data.
B.
It powers the generation of content in what has come to be known as Web 1.0.
C.
It makes up most of the information in systems such as eBay, Craigslist, and Wikipedia.
D.
It is often produced by professionals with the expectation of profit or remuneration.
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