单项选择题

The characteristic of the Neanderthal teeth

A．may result from their frequent use of teeth equipment
B．is that all their teeth are strongly rooted
C．can not be reflected in their cultural activities
D．has something to do with their eyes

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单项选择题

Which of the following statements is NOT TRUE according to this passage

A．There has been ups and downs in the development history of plastic technology.
B．Nowadays plastics help people to live a more convenient life in modern world.
C．Since plastic technology does not have a long history, there are no plastic antiques at all.
D．Collecting cheap but beautiful plastic antiques can be fun sometimes.

单项选择题

The Neanderthals have larger housing brains than modern human beings because__________

A．their intelligence is more advanced
B．they are much shorter
C．their bodies are larger
D．they are larger and cleverer