【单选题】【消耗次数：1】
对称三铰拱在满跨均布竖向荷载作用，其合理拱轴线是（）。
①
抛物线
②
双曲线
③
悬链线
④
圆弧曲线
参考答案：
复制
纠错
相关题目
【单选题】
对称抛物线三铰拱在满跨竖向均布荷载作用下，其截面内力特点是（ ）。
①
弯矩=0.剪力=0，轴力≠0
②
弯矩=0，剪力≠0，轴力≠0
③
弯矩≠0，剪力=0，轴力=0
④
弯矩≠0，剪力≠0，轴力≠0
随机题目
【单选题】
The earth quake left thousands of people in _____ need of medical care.
①
current
②
urgent
③
critical
④
continual
【单选题】
____ find out what had happened.
①
Not until he woke up did he
②
Not until he woke up he
③
Until he woke up did he
④
Until he woke up he
【单选题】
The Anti ---Japanese War____ in 1937 and it ____ eight years.
①
break out; last
②
was broken out; lasted
③
broke out; last
④
broke out; lasted
【单选题】
—Who broke the window ? —Not me. It must have been ____ else.
①
someone
②
anyone
③
everybody
④
nobody
【单选题】
It was the training that he had as a young man ____made him such a good engineer.
①
that
②
has
③
what
④
later
【单选题】
Eeveryone is working harder and living a happier life now, _________ ?
①
arent they
②
arent we
③
isnt it
④
isnt one
【单选题】
Most people come to realize that it is about time the government ____ further measures to control the population.
①
must take
②
is taking
③
takes
④
took
【单选题】
--_______ I put my coat here ?-- Sorry, you ________ .
①
mustnt
②
dont
③
neednt
④
cant
【单选题】
My____ brother is five years ____ than I.
①
elder … older
②
elder…old
③
older….old
④
elder…elder
【单选题】
By the end of last month, she _____ over five hundred letters of congratulation from different parts of the world.
①
would received
②
has received
③
had received
④
receive