单项选择题

原、模型时间比尺总是为1，且只要速度相似，加速度也必然相似，反之亦然。（）

A．对
B．错

你可能感兴趣的试题

单项选择题

金属测压计的读数为计示压强。

A．对
B．错

单项选择题

The growth successes of the high performance Asian economies _____________.

A．supports the belief that economic development requires import substitution policies.
B．rejects the belief that economic development requires import substitution policies.
C．rejects the belief that export-oriented industrialization is likely to promote economic development.
D．suggests that free trade policies are required for successful economic development.