单项选择题

A．Learn from her since she took the class.
B．Concentrate on the section on prostaglandin.
C．Study the exam papers.
D．Work harder.
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单项选择题
A．In the Atlantic near the equator.B．In the islands of the Caribbean.C．In the countries of Central America.D．In the states of Southern America.
A．In the Atlantic near the equator.
B．In the islands of the Caribbean.
C．In the countries of Central America.
D．In the states of Southern America.
单项选择题
A．It’s too boring and difficult to understand.B．He doesn’t talk to students.C．He always talks to himself.D．He is always unhappy.
A．It’s too boring and difficult to understand.
B．He doesn’t talk to students.
C．He always talks to himself.
D．He is always unhappy.
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