砖在15次冻融循环后,烘干,如果重量损失在2%以内,强度损失不超过()%,即认为抗冻 发布时间:2017-05-11 04:40 │ 来源:www.tikuol.com 题型:单项选择题 问题: 砖在15次冻融循环后,烘干,如果重量损失在2%以内,强度损失不超过()%,即认为抗冻性符合要求。A.5B.10C.15D.25
题型:单项选择题 短文改错。此题要求改正所给短文的错误。对标有题号的每一行作出判断:如无错误,在该行右边横线上划一个勾(√);如有错误(每行只有一个错误),则按下列情况改正:该行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线划掉。该行缺一个词:在缺词处加一个漏字符号(∧),在该行右边横线上写出该加的词。该行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。注意:原行没有错的不要改 Before men knew how write, clever men could pass on his knowledge only to the people who could hear them to speak. These listeners could repeat what they heard, but on memory only. Whatever they did not remember was lose. Writing changed all of this. Written knowledges lives on long after the lifetime of the write. Today we can used the information and knowledge which had been gathered for thousands of years. When people the first learned to write, they began to record the stories they had always known and liked. 1.______ 2.______ 3.______ 4.______ 5.______ 6.______ 7.______ 8.______ 9.______ 10.______ 查看答案
题型:单项选择题 在实验室从自来水制取蒸馏水的实验中,下列说法错误的是A.烧瓶中要放入碎瓷片防止暴沸B.温度计的水银球放在支管口附近的位置,不能插入液面C.冷凝水应该是下进上出,与蒸气的流向相反D.开始蒸馏时,应该先加热,再开冷凝水;蒸馏完毕,应该先关冷凝水再撤酒精灯 查看答案
题型:单项选择题 有关假释,下列说法符合法律规定的是哪一项A.假释一般有最低实际执行期限的限制,但如果有特殊情况的,也可以报请监狱部门予以核准B.假释仅适用于无期徒刑和有期徒刑,不能适用于死刑缓期二年执行后被减为无期徒刑的情形C.犯罪分子被宣告假释后,若原判决附有剥夺政治权利的,从假释期满之日起起算D.只要被假释的犯罪分子在假释考验期内犯新罪,即使假释考验期满后才发现,也应当撤销假释 查看答案