中国石油大学 / 中石油
正确率:100%
15. A survey of the opinions of experts ____ that three hours of outdoor exercise a week ____ good for one’s health.
A、show; are
B、show; is
C、shows; is
D、shows; are
A、show; are
B、show; is
C、shows; is
D、shows; are
参考答案:
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