问题
单项选择题
下列哪种说法是错误的？（）
A、化学腐蚀是金属与环境介质直接发生化学反应而产生的损伤。
B、化学腐蚀过程中有电流产生。
C、高温会加速化学腐蚀。
D、如果腐蚀产物很紧密的话，能形成保护膜，减慢腐蚀速度，甚至使腐蚀停止下来。
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
下列哪种说法是错误的？（）
A、化学腐蚀是金属与环境介质直接发生化学反应而产生的损伤。
B、化学腐蚀过程中有电流产生。
C、高温会加速化学腐蚀。
D、如果腐蚀产物很紧密的话，能形成保护膜，减慢腐蚀速度，甚至使腐蚀停止下来。
参考答案：B
My best friend is one of my classmates. We have the hobby. We both enjoy music. I am good English, but she isn’t. She has great interest in university (大学) life and wants to go to university when she school. One day, I found her studying so I wanted to help her with it. she closed (关上) the book. I asked, "What are you doing?" "Nothing," she answered shyly. I didn’t know she closed her book. "I just want to you," I said. "Please don’t laugh at me. My English is not good and I’m a little about learning it in front of others." " laughs at you. That’s why you don’t make any progress (进步) in English. You should try. You should do your best to English with your friends. You can also ask for help from them."
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