单项选择题

中国的台湾普遍采用的制式是。 A.
PAL B.
NTSC
C.
SECAM
D.
其他制式

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多项选择题

下列对世界百年未有之大变局的应对措施描述正确的是（）。

A.聚焦科技创新，引领核心技术
B.增强忧患意识，坚持底线思维
C.准确把握机遇，掌握战略主动
D.保持战略定力，做好自己的事

单项选择题

自1978年经济改革以来，中国经济以年均近10%的速度增长，使其国民生产总值几乎翻了两番

A．Since economic reform began in 1978, an average growth rate of almost 10% a year has seen China’s GNP nearly double.
B．Since economic reform began in 1978, an average growth rate of almost 10% a year has seen China’s GNP nearly quadruple.
C．Since economic reform in 1978, China’s economy grows at a rate of almost 10% a year and makes GDP nearly double
D．Since economic reform in 1978, China’s average growth rate is almost 10% a year and has witnessed its GDP quadruple.