问题
单项选择题
维生素K与维生素C不可以配伍,其原因是
A．维生素K是碱性溶液
B．维生素C是酸性溶液
C．维生素K是强氧化剂使维生素C氧化
D．维生素C是强还原剂使维生素K还原
E．维生素K与维生素C形成新的结构
答案
参考答案：D
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维生素K与维生素C不可以配伍,其原因是
A．维生素K是碱性溶液
B．维生素C是酸性溶液
C．维生素K是强氧化剂使维生素C氧化
D．维生素C是强还原剂使维生素K还原
E．维生素K与维生素C形成新的结构
参考答案：D
完形填空（共10题， 每小题1 分，计10分） My online friend is a kind and friendly girl. She is in America. Her 1 is Sophia. I meet Sophia 2 the Internet. She is twelve years old, and I am 3 years old, too. First, I 4 a letter to her and introduce my hobbies, my school and my everyday life. A few days later, I get Sophia’s 5 . She 6 me a lot about herself. I learn that she loves study, sports and movies. She likes China and Chinese food very much. She tells me something about America too. Sophia is good at English, French, and Spanish(西班牙语), so I ask her to __7 me with English. Sophia wants to learn some 8 , but it’s very hard for her. From Sophia, I know 9 about the world outside. I would like to 10 Sophia some day in America.
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