单项选择题
The purpose of the passage is to（）
A．describe the mining of gold． B．describe man's pursuit of gold. C．determine the importance of gold． D．discuss the role of gold.
单项选择题 The writer advises that the problems between Iran and the USA might be best dealt within the UN by getting the support of（）
单项选择题 In the passage the writer's tone is（）
单项选择题 The writer believes the problems of chaos and noise will most probably only be solved by（）
