题目内容

President Xi Jinping visited Central Asia and Southeast Asia in September and October of 2013, and he raised the initiative of jointly building the Silk Road Economic Belt and ________.

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The Belt and Road Initiative is intended for promoting multinational economic development through two component plans, the land-based Silk Road Economic Belt and Maritime Silk Road.

A. 对
B. 错

The Initiative only covers the area of ancient Silk Road.

A. 对
B. 错

The initiative follows market operation. It will abide by market rules and international norms.

A. 对
B. 错

放大-检波式电压表的检波器是 ( )。

A. 均值检波器
B. 峰值检波器
C. 有效值检波器

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