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【单选题】
以下关于类和对象的叙述不正确的是________。A.
不同的类可以产生相同类型的对象
B.
类是一种类型,它定义了数据和操作
C.
对象是类的实例
D.
任一对象必属于一个类
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【判断题】A product just being introduced needs a different level of service support than one that is in a mature or declining market stage.
A.
正确
B.
错误
【单选题】2019 年春节联欢晚会中, “ 黑科技产品 ” 柔性屏给观众带来全新的视觉体验,它具有轻、薄、柔、艳、高清的特点,用户可以实现自由弯曲、折叠、卷曲,该技术将广泛应用于消费电子、智能交通、智能家居、教育办公等行业,这可以佐证( ) 1 认识产生于实践的需要并受实践推动 2 实践是认识的最终目的和归宿 3 真理只有一个,对新科技的认识具有反复性 4 世界上没有尚未认识之物,只有不可认识之物
A.
②③
B.
③④
C.
①④
D.
①②
【判断题】A product just being introduced needs a different level of service support than one that is in a mature or declining market stage.
A.
正确
B.
错误
【单选题】A brand's value today may not just be about profit and loss, but also about ___________ – being able to demonstrate clearly where and how a product is made.
A.
accountability
B.
sustainability
C.
responsibility
【单选题】______ does Mr. Johnson go to London on business?'At least once a month.
A.
How many
B.
How long
C.
How often
D.
How
【简答题】A brand's value today may not just be about profit and loss, but also about ___________ – being able to demonstrate clearly where and how a product is made.
【单选题】How does Jennifer look thinner than before?
A.
She is on a diet.
B.
She is stressed out.
C.
She is suffering from insomnia.
【简答题】How does Jennifer look thinner than before?
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