问题
单项选择题
多孔桥梁各孔净跨径的总和为（）。
A、桥梁孔径
B、计算跨径
C、基础跨径
D、标准跨径
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
多孔桥梁各孔净跨径的总和为（）。
A、桥梁孔径
B、计算跨径
C、基础跨径
D、标准跨径
参考答案：A
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| Do you have a healthy lifestyle? I think I __1__. First, I have many good eating habits. I like junk food __2__ hardly eat it. I eat fruit and vegetables everyday__3__. they are not very delicious, but they are __4__ for health. Second, I do __5__ every day. It says that if people run every day, they will have more healthy hearts (心脏) than (比) others. So I run for __6__ thirty minutes every morning. __7__, I have good living habits. I try to __8__ eight hours everyday. That __9__ me to be energetic (精力充沛 的) the next day. And I can study better and get goodgrades.What do you __10__ my lifestyle? Can you learn something from it? | ||||
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