单项选择题

A．They both attract scientists’’ attention
B．They can both be quite challenging
C．They are both thought-provoking.
D．They may both lead to surprising findings.
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单项选择题
A．Both of them have overcome their fear of heights.B．The woman is afraid of high places, but the man is not.C．They are both afraid of high places.D．Both of them like to stand on high places.
A．Both of them have overcome their fear of heights.
B．The woman is afraid of high places, but the man is not.
C．They are both afraid of high places.
D．Both of them like to stand on high places.
单项选择题
A．She was speeding.B．She ran a red light.C．She drove in the wrong direction.D．She turned a corner too fast.
A．She was speeding.
B．She ran a red light.
C．She drove in the wrong direction.
D．She turned a corner too fast.
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