题目

化学方程式 2Mg+O2 2MgO 可读作（） A . 镁加氧气等于氧化镁 B . 2 个镁加 1 个氧气等于 2 个氧化镁 C . 镁和氧气在点燃条件下生成氧化镁 D . 镁元素加氧元素点燃生成氧化镁 答案：C单词拼写（共10小题；每小题1分，满分10分）根据所给的汉语或首字母提示写出单词的正确形式1. Everybody says it is _______________(值得的)seeing but I find nothing special about that place.2. There was not enough_______________(证据) to prove that he stole the wallet.3. Women were not allowed to take part in the Olympic Games in____________(古代的) times.4. Has any Asian nation ever_______________(主办)an important soccer match?5. He is good at_________________(计算) the cost of a trip.6. P________________ speaking. I don’t like the way he speaks to me.7. Wildlife p___________________ is a topic that is very important.8.Hearing the funny story, I burst into l___________________.9. A___________________ to a UN report, about 844 animals and plants have disappeared in the last 500 years.10.It was one of the most serious accidents this year. Very few passengers s_____________ in it.