单项选择题

What is the author's attitude towards Bush's spaceflight program

A．Negative.
B．Positive.
C．Neutral.
D．Not mentioned in the passage.
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单项选择题
The highest _____________ of governments has been given to the problem of heavy traffic.
A．pride
B．privilege
C．priority
D．project
填空题
(S4) What did the author think mainly caused the traffic accident in this passage
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