直径在6~20米的油罐,可在罐底外壁设2~3处接地。() 发布时间:2017-07-11 20:12 │ 来源:www.tikuol.com 题型:判断题 问题: 直径在6~20米的油罐,可在罐底外壁设2~3处接地。()
题型:判断题 — Is Mr. Smith rich?— Yes, very rich. When he worked in ________town, he earned a lot. Now he has a big farm in ________ country.A.at; the B./; / C./; the D.the; / 查看答案