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【单选题】
What kind of passengers can be permitted to leave the cruise ship?A.
People who has no symptom of infection.
B.
People who have been tested and found to be infected by the new coronavirus.
C.
People who are under quarantine.
D.
People who have been tested, found to be free of the new coronavirus and show no signs of infection.
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皮皮学刷刷变学霸
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【简答题】洗脸的活动成分为:
【单选题】19 100°C,101325Pa的液态H2O(l)的化学势μl, 100°C,101325Pa的气态H2O(g)的化学势μg ,二者的关系为
A.
μl >μg
B.
μl
C.
μl =μg
D.
没有一定关系