问题
单项选择题
对跨度不小于4m的现浇钢筋混凝土梁、板，其模板应按设计要求起拱，当设计无具体要求是，起拱高度为跨度的（）。
A.1/1000
B.3/1000
C.1/1000~3/1000
D.L/1000
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
对跨度不小于4m的现浇钢筋混凝土梁、板，其模板应按设计要求起拱，当设计无具体要求是，起拱高度为跨度的（）。
A.1/1000
B.3/1000
C.1/1000~3/1000
D.L/1000
参考答案：C
| 完形填空。 | ||||
| The marathon is a popular Olympic event. It is a very 1 race — 42.2 kilometers, and good 2 finish it in about two hours. Marathon is the name of a place in Greece. There is an old 3 about an important battle (战斗) at Marathon 2500 years 4 . The Greeks won the battle and their leader(领袖) was very excited. He shouted, "We must 5 a message to Athens(雅典) at once. It's a long way to Athens. 6 can take our message home to our people?" Pheidippides said, "I can! I want to do it. I can run 7 than all the other men!" Pheidippides ran as fast as he could to Athens. He shouted the 8 news to the Athenians, "We won! We won the battle!" Then he 9 to the ground. He was too tired and died. He was the 10 "Marathoner". | ||||
|