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展览性的比赛项目包括：

A. 规定项目
B. 自选项目
C. 混合项目
D. 神秘箱比赛

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习近平主席在第二届世界互联网大会提出，各国应该共同构建（）命运共同体。

安全是发展的保障，发展是安全的（）。

完全竞争企业使用要素的原则是（）

A. VMP=P*MP
B. VMP=MP
C. MR=VMP
D. VMP=P*MP=W

65.If your library card is lost or stolen, contact us as soon as possible to replace it. We will block your card so no one can use it. Provide your library number and other personal information. You can replace your card by completing a new application and bringing it (with your valid photo ID) to the library for no charge. But you will be responsible for fines that accumulate on your card until the loss is reported.