问题
选择题
设集合M={x|2-x>0},N={x|l≤x≤3},则M∩N=( )
A.[1,2)
B.[1,2]
C.(2,3]
D.[2,3|
答案
∵集合M={x|2-x>0}={x|x<2},N={x|l≤x≤3},
∴M∩N=[1,2)
故选A
设集合M={x|2-x>0},N={x|l≤x≤3},则M∩N=( )
A.[1,2)
B.[1,2]
C.(2,3]
D.[2,3|
∵集合M={x|2-x>0}={x|x<2},N={x|l≤x≤3},
∴M∩N=[1,2)
故选A
It was a Sunday afternoon. It was very ____and nobody wanted to stay at home. Mike decided to go swimming in the river. His brother,Jim.wanted to go with him. “ _______him with you, Mike” said their father.” he will do what you say, I think.” They got ____the river quickly. A lot of people were ___in it. Mike told Jim to play in the bank,then he ____into the river. About an hour later, Mike swam to the bank with a fish in his hand. Jim was very _____. He found a bottle and put the fish in it. Jim did____except(除了) watching the fish that evening. Suddenly Mike heard Jim ____in the room. He ran to him and asked,” what’s wrong ____you, Jim?” “ The fish has died,” Jim said “I thought it was ______. So I took it out of the bottle and put it on the chair, I only wanted it to have a rest.”
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