问题
单项选择题
A separate, long-running dispute over oilseeds does still pose a threat. ( )
A．possess
B．present
C．provide
D．purchase
答案
参考答案：B
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A separate, long-running dispute over oilseeds does still pose a threat. ( )
A．possess
B．present
C．provide
D．purchase
参考答案：B