单项选择题

We learn from the second paragraph, ______.

A．reducing cost is the surest way to increase profits
B．profits depend on how fast goods are moving
C．fair markup promise the greatest profits
D．lower markup brings reasonable profits

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单项选择题

A．possibleB．impossibleC．goodD．bad

A．possible
B．impossible
C．good
D．bad

单项选择题

What does Deputy Defense Secretary Paul Wolfowitz mean

A．The testing will be resumed if necessary.
B．The testing must be resumed soon.
C．The testing will never be resumed.
D．He cannot rule out the possibility of that testing.