问题
单项选择题
氧离曲线的上段可认为是（）.
A.HbO2释放O2的部分
B.Hb与O2结合的部分
C.两者都是
D.两者都不是
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
氧离曲线的上段可认为是（）.
A.HbO2释放O2的部分
B.Hb与O2结合的部分
C.两者都是
D.两者都不是
参考答案：B
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| No visitor was left in the museum now, and John was walking around to check if everything was all right. 1 he saw a beautiful painting lying on the floor. John 2 and gave it to the curator (馆长). The curator called several museums to check if it was a stolen painting 3 no one claimed (认领) it. So the curator  decided to hang it. 4 said it was beautiful and had a very deep meaning. The curator was 5 to have such a painting in his museum and congratulated John on his discovery. Some weeks later a woman and her 6 came to the museum. While they were looking at that painting, the little boy began to 7 . The curator went over and asked what was making him so sad. The child pointed to 8 and said, “That’s my painting and I want it back.” “Yes,” said his mother. “He 9 it on the floor a few weeks ago. If you look carefully, you can see the name on the painting.” The curator 10 believe his ears when he heard the truth. | ||||
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