单项选择题

What was NASA accused of on Wednesday’

A．Being too prudent and cautious.
B．Being too hasty to assure safety.
C．Causing the Columbia tragedy.
D．Delaying launch plans.
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单项选择题
What is the principle idea of the laisser faire policy
A．The rights of private business owners should be protected.
B．The government shouldn’t interfere in private business.
C．Politicians should support industrial growth.
D．Competition among companies should be restricted.
单项选择题
What docs the woman imply about Gettysburg
A．It’s far from where she lives.
B．Her family went there without her.
C．She doesn’t know a lot about it.
D．She’s excited about going there.
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