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
高斯平面直角坐标系的通用坐标,在自然坐标Y′上加500km的目的是()
A. 保证Y坐标值为正数
B. 保证Y坐标值为整数
C. 保证X轴方向不变形
D. 保证Y轴方向不变形