问题
判断题
朱砂用火加热处理生成有毒性的硫化汞(HgS)。
答案
参考答案:错
朱砂用火加热处理生成有毒性的硫化汞(HgS)。
参考答案:错
根据对话内容,从下面方框中选择适当的短语填空,使对话内容完整正确。
Life is not easy, so I’d like to say “When anything happens, believe in yourself!”. When I was a young boy, I was 小题1: speak to anyone. My classmates often 小题2: me. I was sad but could do nothing. Later, something happened, and it changed my life. It was an English speech contest. My mother asked me to take part in it. What a terrible idea! “Come on, boy. Believe in yourself! You are 小题3: to win.” Then mother and I talked about many different topics. At last, I chose the topic “Believe in yourself”. I 小题4: to remember all the speech and practised it over 100 times. With my mother’s great love, I did well in the contest. I 小题5: believe my ears when the news came that I had won the first place. I heard the cheers from the teachers and students. |