问题
选择题
A survey of the opinions of experts ____ that three hours of outdoor exercise a week ____ good
for one's 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 experts ____ that three hours of outdoor exercise a week ____ good
for one's health. [ ]
A. show; are
B. shows; is
C. show; is
D. shows; are
答案：B