单项选择题

A．It can be used by farmers to protect large buildings.
B．It was brought to the northern USA by Asian farmers.
C．It has done more harm than good in the southern USA.
D．It was introduced into the USA to kill harmful weeds.
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单项选择题
A．It’’s amazing that anyone could move so fast.B．Televisions mark the beginning of modem life.C．Modem life is changing very fast.D．It’’s hard to remember the past.
A．It’’s amazing that anyone could move so fast.
B．Televisions mark the beginning of modem life.
C．Modem life is changing very fast.
D．It’’s hard to remember the past.
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