单项选择题


Questions 22 to 25 are based on the conversation you have just heard.

A．Yellow.
B．Green.
C．Red.
D．Black.
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填空题
In some developing countries, the result of protecting local industries from competition is ______.
单项选择题
100 calories in a can of soda equals to ______.
A．200,000 regular calories
B．100 kilocalories
C．200 kilocalories
D．4,184 joules
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