固态气体水合物
参考答案:
在洋底特定压力和温度条件下,甲烷气体分子天然地被封闭在水分子的扩大晶格中,形成固态气体水合物,或冰冻甲烷或水化甲烷
短文改错(共10小题,每题1分,满分10分)
文中共有10处错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏词符号(∧),并在此符号下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:1、每处错误及其修改均仅限一词;
2、只允许修改10处,多者(从第11处起)不计分。
Li Ling is the only one of the student in our class who have ever been to England. Last summer she is lucky enough to be sent there to study for three months. When she arrived in England by plane, she was picking up at the airport by the Johnson family,∧she would live with for the next few months. The family does everything they could to make Li Ling to feel at home. Li Ling began her study abroad at a middle school, where she met friends from all over∧ world. She made fully use of every minute to practise her spoken English and was better thought of by all the people around her.
我国按沥青混凝土中矿料的最大粒径分为()。
A.粗粒式沥青混凝土
B.瓜子片沥青混凝土
C.细粒式沥青混凝土
D.中粒式沥青混凝土
E.普通沥青混凝土