化学除锈金属表面预处理质量等级为( )。A.Ti B.Si C.Pi D.P1 发布时间:2017-12-24 14:04 │ 来源:www.tikuol.com 题型:单项选择题 问题: 化学除锈金属表面预处理质量等级为( )。A.TiB.SiC.PiD.P1
题型:单项选择题 给下列句子中加粗的字选择正确的读音。1.把亲友塞( sāi sè)到手心里的一小包压岁钱积攒起来,做个小富翁。2.客人们哄(hōng hǒng)堂大笑。3.盛(shèng chéng)夏时节,月朗风清的夜晚。4.确实是千钧之重的责难( nán nàn)之词。5.没有能力挣(zhēng zhèng)钱,总有义务省钱。 查看答案
题型:单项选择题 People were afraid to leave their house, ______ the police had been ordered to stand by in case, of emergency, they were just as confused and helpless as anybody else.A.and even ifB.but sinceC.however afterD.for though 查看答案