单项选择题

If you keep getting wrong numbers, your phone could be ______ .

A．deceptive
B．ineffective
C．deficient
D．defective
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单项选择题
The poem is difficult to understand because it contains so many ______ references.
A．obscure
B．acute
C．notable
D．objective
单项选择题
The bond of true affection had pulled us five very different men from five very different countries across Antarctica; we proved in the end that we weren't very different ______.
A．for all
B．as usual
C．in particular
D．after all
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