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【单选题】
生产力和生 产 关系的统一构成A.
经济基础
B.
上层建筑
C.
生产方式
D.
人和自然之间的关系
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皮皮学刷刷变学霸
举一反三
【简答题】A．It's convenient as snacks. B．It explains why the woman likes fast food. C．It's convenient as main meals. D．The convenience outweighs its tastelessness.
【单选题】The man disagrees with the woman and he explains that .
A.
a lot of advances in technology depend on animal research
B.
new advances in medicine should be first tested on chimpanzees
C.
a lot of medical research cannot be done directly on humans
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