问题
选择题
下列说法正确的是
A．化学键断裂放出能量
B．离子化合物中可能含有共价键
C．单质中可能含离子键
D．共价化合物中可能含有离子键
答案
答案：B
搜题请搜索小程序“爱下问搜题”
下列说法正确的是
A．化学键断裂放出能量
B．离子化合物中可能含有共价键
C．单质中可能含离子键
D．共价化合物中可能含有离子键
答案：B
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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