单项选择题

The investors will discontinue their investment on the product if its costs continue to______.

A．propagate
B．prolong
C．elevate
D．escalate
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单项选择题
Senator______launched an Anti-Communist hysteria in the early 1950s.
A．Franklin Roosevelt
B．George Kennan
C．Theodore Roosevelt
D．Joseph Raymond McCarthy
单项选择题
The company that Susan works for is ______with an automotive company, so she can get a discount on a new car.
A．correlated
B．paralleled
C．accounted
D．affiliated
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