在水准测量中设A为后视点，B为前视点，并测得后视点读数为1.124m，前视读数为1. 发布时间：2017-07-13 07:23 │ 来源：www.tikuol.com 题型：单项选择题 问题： 在水准测量中设A为后视点，B为前视点，并测得后视点读数为1.124m，前视读数为1.428m，则B点比A点（）Ａ.高；Ｂ.低；Ｃ.等高
题型：单项选择题 阅读理解。A．阅读短文，完成下列各题，将正确答案的序号填入题前括号内。 Do you know what is the White House? Perhaps some of you do, while others don't. The White House is a house in Washington D.C. The president of the USA works in it. It is really white.But do you know why the White House is white? The story happened in 1812. That year England was at war (与……交战) with America, the British army (军队) got to Washington and set the president's house on fire. 1814, in order to hide the marks of the fire, the stone walls of the president's house were painted white andit has been the "White House" ever since.1. The White House is .[ ]A. a house for the president of the USA B. a house for American people C. a house for American soldiers D. one of the American museums2. In American people painted the president's house white.[ ]A. 1810 B. 1812 C. 1814 D. 18163. The house is called "White House" because .[ ]A. the house is very clean B. the stone walls of the house are white C. the American people like white colour D. it is covered with snow4. In the passage "set... on fire" means in Chinese.[ ]A. 放火烧 B. 解雇 C. 开火 D. 把……放在火上5. The Chinese for the White House is .[ ]A. 白房 B. 白殿 C. 怀特·豪斯 D. 白宫B．阅读下面启事，判断下列各句的内容是否与启事所表述的相符，相符在括号内写“T”，不符在括号内写“F”。 Found: There's a grey jacket in our lost and found case. Please call Jack at 837-4925. Found: I'm David from Class 4, Grade 6 in Yangguang Primary School. I'm looking for the owner of a camera. Found: I picked up a watch yesterday. If it is yours, please call me. Tel: 325-8064 Mary Lost: I have lost my library card. Please e-mail Jim if you get it. E-mail address: fluingjim@tom. com 注: lost and found case (失物招领处) ( ) 1. 837-4925 is Jack's telephone number. ( ) 2. If you lose your jacket, you can call Mary at 325-8064. ( ) 3. Jack wants to know whose camera it is. ( ) 4. David is a primary school student. ( ) 5. If you pick up Jim's library card, you can tell him on the Internet. 查看答案
题型：单项选择题 在一机多票开票子系统V6.15中，当企业准备做“已开发票作废”操作时，可以（）。A.由任意一位开票员作废当月的发票B.由任意一位开票员作废当月已开具未抄过税的发票C.由系统管理员作废任何一张当月已开具但未抄过税的发票D.由系统管理员可以作废当月已开具且已抄过税的发票E.由开票员作废自己当月已开具但未抄过税的发票 查看答案