关于亚共析钢说法正确的是()。A.碳的质量分数大于0.77% B.碳的质量分数小于 发布时间:2017-11-25 11:25 │ 来源:www.tikuol.com 题型:多项选择题 问题: 关于亚共析钢说法正确的是()。A.碳的质量分数大于0.77% B.碳的质量分数小于0.0218% C.碳的质量分数小于0.77% D.室温平衡组织铁素体+珠光体
题型:多项选择题 选择适当的句子补全对话。a. How much would you like ?b. Is that all ?c. How much are these things ?d. May I help you ?e. How many do you want ?A: Good morning, sir. B: I'd like to buy some peas, please.A: B: Half a kilo, please.A: OK. Here you are, B: No. And some tomatoes, please. A: B: Four, please. A: Here you are. B: Thank you. A: Let me see, 3 yuan 80 fen. B: OK. Here's the money. A: Thank you. 查看答案
题型:多项选择题 化妆品的二级污染是指()A.化妆品的原材料受污染而导致的污染B.化妆品在生产过程中导致的污染C.生产容器的污染D.化妆品启封后,在使用存放过程中受污染E.产品运输过程中的污染 查看答案