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单项选择题


Passage Two
Questions 30 to 32 are based on the passage you have just heard.

A．To forbid grazing on marginal lands.
B．To plant more trees on marginal lands.
C．To establish good ground cover.
D．To graze animals rotationally.
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单项选择题When the author said he was lucky , it means the following except ______.

A．the topic he found in a book a century ago is so strange
B．he often finds that the past has valuable lessons for the future
C．there are many books on electric vehicles in the 20th century
D．books published before 1923 are in the public domain

单项选择题A．The induction session is on Tuesday.B．The first set of seminars is held on Wednesday.C．The Teaching session is scheduled on Thursday.D．Nothing is scheduled on Friday.

A．The induction session is on Tuesday.
B．The first set of seminars is held on Wednesday.
C．The "Teaching" session is scheduled on Thursday.
D．Nothing is scheduled on Friday.