单项选择题

A．A salesman.
B．A telephone repairman
C．A plumber.
D．An electrician.
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单项选择题
A．For a presentation at a seminar.B．For an assignment by her professor.C．For a thesis required by the course.D．For an understanding about Dickens.
A．For a presentation at a seminar.
B．For an assignment by her professor.
C．For a thesis required by the course.
D．For an understanding about Dickens.
单项选择题
The conclusion that upswings in hurricane strength correlate with a rise in sea-surface temperatures is accepted by most scientists.
A．Y
B．N
C．NG
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