Jerry had a natural ability to make people look at the positive side of life.
查看答案
When something bad happened, Jerry just paid no attention to it.
A. 对
B. 错
Even in the emergency room, Jerry made a joke to the doctors and nurses.
A. 对
B. 错
Jerry asked the doctors to remove the bullets from his body because he was allergic to them.
A. 对
B. 错
设A∩B=A，则
A∪B=A
B. A∪B=B
C. B-A=Φ
D. B⊂A
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