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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
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9，26，51，124，173，（ ）
A216B294C295D316
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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.
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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
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“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
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