单项选择题

A．The greenhouse effect.
B．The heat from the sun.
C．Such objects as the seats, the dashboard, etc.
D．Carbon dioxide, methane(甲烷) gas and water vapor.
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单项选择题
A．One more dollar for every night.B．An extra dollar per child per hour.C．10.23% of her college tuition.D．10.32% above the average charge.
A．One more dollar for every night.
B．An extra dollar per child per hour.
C．10.23% of her college tuition.
D．10.32% above the average charge.
单项选择题
A．Education.B．Accounting.C．Marketing.D．Computer.
A．Education.
B．Accounting.
C．Marketing.
D．Computer.
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