单项选择题

A．It is measured annually.
B．It is highest at the ocean’s surface.
C．It is increased over time.
D．it is decreased over time.
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单项选择题
A．She wants to quit her job in the chemistry lab.B．She wants to get practical experience.C．She’s interested in becoming a psychology major.D．She wants to earn extra money.
A．She wants to quit her job in the chemistry lab.
B．She wants to get practical experience.
C．She’s interested in becoming a psychology major.
D．She wants to earn extra money.
单项选择题
A．On the first day in November.B．On the fourth Sunday in November.C．On the fourth Monday in December.D．On the last day of the year.
A．On the first day in November.
B．On the fourth Sunday in November.
C．On the fourth Monday in December.
D．On the last day of the year.
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