单项选择题

A．It lacks the necessary background information.
B．The man should find the proper subject to research firstly.
C．It will be finished in a short time.
D．The man doesn’t know how to carry it on.
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单项选择题
A．It is as important as that from books.B．It is less important than that from books.C．It is more important than that from books.D．It is too limited.
A．It is as important as that from books.
B．It is less important than that from books.
C．It is more important than that from books.
D．It is too limited.
单项选择题
A．People, regardless of their age, are crazy about video games.B．Those over 15 can use the machines during the day in most countries.C．Schoolchildren in uniforms are not allowed into amusement centers in many countries.D．Youngsters are not prohibited to use video game machines placed in amusement centers.
A．People, regardless of their age, are crazy about video games.
B．Those over 15 can use the machines during the day in most countries.
C．Schoolchildren in uniforms are not allowed into amusement centers in many countries.
D．Youngsters are not prohibited to use video game machines placed in amusement centers.
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