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【单选题】
下列选项中错误的是( )。
A.
就企业经济活动看，其研究与开发活动的主要活动是进行产品、技术和工艺的创新
B.
狭义的新产品概念是指在一定地域内从未试制生产过的，具有一定独创性和新品质的产品
C.
新产品仅指从未试制生产过的产品
D.
新产品要符合以下特点：一是具有新的原理、构思和设计；二是产品的物理性能和化学性能有较大的提高；三是产品的结构形式、形状显著优越；四是改变原材料的工艺方法；五是扩大了产品的使用范围和使用性能；六是以生产和销售为目的生产
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【单选题】You should allow your children the space to voice their opinions,______they are different from your own..
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【单选题】In your class, you should allow students to voice their opinions, they are different from your own.
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【单选题】4节中例题练习第一个视频教程中,打开vs后lesson2_1.c文件中,printf命令中的字符串为()。
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Hello World!
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D.
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【单选题】What does a 'we should allow for a marginal error' mean?
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B.
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D.
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【单选题】You should allow your child to voice his opinions _______they are different from yours.
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【单选题】You should allow people to voice their opinions they are different from your own.
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【单选题】You should allow your children the space to voice their opinions,______they are different from your own..
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A.
as if
B.
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【单选题】You should allow people to voice their opinions they are different from your own.
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