单项选择题

A) negative C) harmful B) positive D) a beneficial

A．negative
B．positive
C．harmful
D．a beneficial
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单项选择题
What does gilt-edged diploma mean in the second paragraph
A．Diploma of an elite college.
B．Diploma of an expensive college.
C．Diploma of a private college.
D．Diploma of a public college.
单项选择题
A) essential C) better B) must D) best
A．essential
B．must
C．better
D．best
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