单项选择题

A．It is being raised each year.
B．It remains constant.
C．It will reach sea level in 9,000 years.
D．It is being lowered gradually.
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单项选择题
A．Because he didn’’t feel very well.B．Because he overslept and missed the lunch.C．Because he didn’’t hear the lunch bell.D．Because he thought he couldn’’t afford it.
A．Because he didn’’t feel very well.
B．Because he overslept and missed the lunch.
C．Because he didn’’t hear the lunch bell.
D．Because he thought he couldn’’t afford it.
单项选择题
A．On television.B．At registration.C．In class.D．At work.
A．On television.
B．At registration.
C．In class.
D．At work.
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