就目前来说,主流的火灾报警系统多采用何种结构?()
A.多线制结构
B.环形结构
C.总线制结构
D.星形结构
参考答案:C
妈妈买一套衣服共用去135元,上衣的价钱比裤子的1.5倍多15元,上衣、裤子各多少元?(列方程解)
I used to quarrel a lot with my parents , but now we _____ well. [ ]
A. get over
B. get through
C. get along
D. get away with