题目内容

[音频]Seven government agencies, including China's Cyberspace Administration and the Ministry of Public Security, jointly____1____ a regulation on Friday. It makes clear individuals ____2___in livestreaming marketing or ___3_____ should be aged 16 or older, and requires livestreaming platforms to _____4__those with records of serious _____5___. The regulation, set to take___6__ on May 25, stipulates that people engaged in livestreaming marketing must provide true, __7_____ and necessary information on their products.No content should __8____ or defraud consumers.It also __9____activities such as selling counterfeit goods, infringing upon_____10__property rights, falsifying online ___11___ and tampering with transaction figures.Account holders and livestreamers should _____12__ to reasonable requests from consumers in a timely___13_____.

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请仔细阅读实验报告中要求内容,我们本次实验测试内容包括几步?

A. 2
B. 3
C. 4
D. 5

步骤1中需要手动得出原电路的戴维宁等效电路,需要计算开路电压、等效电阻。而不是通过仿真来测量。步骤2需要在Multisim中画出原电路的仿真电路图,利用万用表来测量原电路的开路电压、等效电阻等参数。

A. 对
B. 错

步骤3和步骤4分别测量了原电路和戴维宁等效电路中,RL的值变化时对应的电压电流值的变化,必须要记录到表格中,并需要在同一个图中画出步骤3和步骤4的伏安特性曲线,用不同的颜色来表示,并作出标记。两个电路由于本质上等价,在RL上的伏安特性曲线应该基本一致。

A. 对
B. 错

有关日本自然环境的描述正确的是:

A. 太平洋东北部的群岛国
B. 地形以平原和高原为主,多火山地震
C. 属于温带和亚热带季风气候,具有海洋性特征
D. 水力资源、森林资源和矿产资源都很贫乏

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