薄壁工件的毛坯材料常采用（）。
A. 铝合金
B. 精密铸造件
C. 无缝钢管
D. 耐热合金
E. 耐腐蚀合金
F. 耐磨合金
If you （） the equipment more carefully before sail, we （） so much trouble now.
A. examined；are not having
B. had examined；would not have
C. had examined；would not have had
D. should examine；would not have
列车在出、入场线无码区按（）方式限速运行。
A. 慢速前行
B. 电话闭塞
C. ATO
D. 人工ATP
网上申报纳税人通过网上申报系统查询可以查询到以下哪些申报信息（）
A. 企业所得税报表
B. 个人所得税
C. 营业税
D. 医疗保险
微信支付 
支付宝支付