图示结构的超静定次数n =___, 位移法的基本未知量个数n =___。
图示结构的超静定次数是
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧