单项选择题

A．You should avoid graded rivers.
B．You should choose real white water.
C．You should take someone experienced with you.
D．You should choose somewhere like a canal.
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单项选择题
Which of the following is implied in the sentence That conjures up images of constant and relentless forward movement orchestrated with military precision.
A．The march of technology evokes people"s imagination of the Army.
B．The assumption that the march of technology is orderly is reasonable.
C．The advancement of technology is not always as orderly as people suppose it to be.
D．Technological improvement is not always predictable.
单项选择题
According to the passage, which of the following is NOT true
A．It is easier for immigrants to seek employment in America than in Europe.
B．America and Europe have different policies toward immigrants concerning jobs and welfare benefits.
C．Europe may attract immigrants with its generally good public welfare benefits.
D．America is more tolerant and generous toward immigrants than Europe.
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