问题
多项选择题
Turner综合征的核型中哪些最为常见（）
A.46，XXP
B.45，X
C.46，XXq
D.45，X/46，XX
E.47，XXY
答案
参考答案：B, D
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Turner综合征的核型中哪些最为常见（）
A.46，XXP
B.45，X
C.46，XXq
D.45，X/46，XX
E.47，XXY
参考答案：B, D
阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。 There are thousands of people across the United States without any food or shelter(住所).Every Saturday or Sunday night，my family and I go out and ____the homeless people in the city. There is one____thing I like to mention here. Before we begin our____，my family and I do not eat. We do this____we know how it feels to be hungry. We all get together in the kitchen and____the food. We then____the food for 30 or more people. I like to write a special____on the bags like “God loves you”. A lot of people____homeless people. Not all homeless people are bad people. Some are really____.Many people hate them____no good reason. In the beginning，when my family and I went out on the street，we had to____their trust. Later，as they____us every week，they started to trust us.We____know some of their names. We all have to keep in mind that they also have____.Some of them shake our hands for giving them food，and____ us. Some of them do really funny dances because they are____. We have become____close to a man named Tony and his wife. After meeting with them several times，he has told us a lot about his____.He graduated from college and has a PHD. He used to teach French and Spanish. After we get done feeding the homeless，it makes me____what I have at home. Sometimes it makes me sad，and makes my mom cry. I love feeding the homeless，and ____in someone’s life.
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