【判断题】低合金耐热钢因为含有Cr和Mo等合金元素,所以强度比碳素钢高,焊接性也随之变好。
【简答题】读对话,回答问题。 Mary: What can you do, John? John: I can cook the meals. What can you do? Mary: I can make the bed, wash the clothes and use a computer. John: I can use a computer, too. I have a sister. She...
【单选题】某企业为增值税一般纳税人,购入材料一批,增值税专用发票上标明的价款为100万元。增值税税额为17万元,另支付材料的保险费2万元、包装物押金5万元。该批材料的采购成本为( )万元。
【简答题】Listen to a talk about home remedies. Choose the best answers to these questions. 1). What can you do when you have sleep problems? 1 2). What can you do when your ear hurts? 2 3). What can you do whe...