They lived in large groups．,They used sand as insulatio-找考题网

单项选择题

A．They lived in large groups.
B．They used sand as insulation.
C．They kept fires burning constantly.
D．They faced their homes toward the south.

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单项选择题A．Because the temperature can climb to 85° Fahrenheit.B．Because the temperature can climb to 95° Fahrenheit.C．Because the temperature can climb to 75° Fahrenheit.D．Because the temperature can climb to 105° Fahrenheit.

A．Because the temperature can climb to 85° Fahrenheit.
B．Because the temperature can climb to 95° Fahrenheit.
C．Because the temperature can climb to 75° Fahrenheit.
D．Because the temperature can climb to 105° Fahrenheit.

单项选择题A group of Swiss students designed the world’’s first counting machine made entirely of biological parts.

A．Y
B．N
C．NG

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