问题
单项选择题
属于家族遗传性疾病的结石是
A．碳酸盐结石
B．尿酸结石
C．草酸盐结石
D．胱氨酸结石
E．磷酸盐结石
答案
参考答案：D
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属于家族遗传性疾病的结石是
A．碳酸盐结石
B．尿酸结石
C．草酸盐结石
D．胱氨酸结石
E．磷酸盐结石
参考答案：D
| 完形填空 。 In our country every school has a library. I'm 1 you have read many books. You borrow them from the school library and keen them for 2 . Maybe you 3 get books from your parents or friend 4 , If you like reading and want 5 , you may often go to bookshops and buy some yourself. Have you 6 thought of how people make a book? Different people must check it several times 7 it comes out. After __8 _ finishes reading a book, the book passes through the hands of many other people. Everyone in the factory, has to work very carefully because 9 must not be any mistake in it. Many people are busy _10 _ it. They print it on good paper and put the pieces together before it goes to the bookshop. We all like reading. Let's take good care of books. | ||||
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