问题
选择题
A survey of the opinions of scientists _____ that three hours of outdoor exercise a week _____
good for our health.
A．show; are
B．shows; is
C．show; is
D．shows; are
答案
答案：B
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A survey of the opinions of scientists _____ that three hours of outdoor exercise a week _____
good for our health.
A．show; are
B．shows; is
C．show; is
D．shows; are
答案：B