题目

下列化学用语使用正确的是（    ）A．HCN分子的结构式：H—C≡N         B．水分子的球棍模型：C．F－离子的结构示意图：          D．二氧化碳的电子式   答案：A解析:略 根据下列句子及所给汉语注释或单词的首字母，在句子右边的横线上写出空缺处各单词的正确形式。（每空只写一词） 1．The steel o      of the factory is 20% higher this year than last year.              1．        2．What do you think are the major factors that I should take into c      when I want to buy a car?                       2．        3．Cigarettes can no longer be a      on TV or the radio.                                  3．        4．He keeps 20 h      of cattle on his farm.                                                     4．        5．Look! She is so angry. You should make an a      to her for what you have done. 5．        6．His experience and his fair knowledge of English meant that he had a big      （优势）over the others.                           6．        7．        （如今）, more and more people use cell phones.                            7．        8．New science and         （技术）is changing our life day by day.               8．        9．I have got such a bad cold that I have lost all        （感觉）of smell           9．        10．More and more classrooms in cities are        （配备）with computers.    10．