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.下列安全措施不正确的是

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  • 【名词&注释】

    低密度脂蛋白胆固醇(low density lipoprotein cholesterol)、烟花爆竹(fireworks)、酒精灯(spirit lamp)、危言耸听(alarmism)

  • [单选题].下列安全措施不正确的是

  • A. 燃放烟花爆竹时,远离人群和可燃物
    B. 天然气泄漏,立即关闭阀门并开窗通风
    C. 燃着的酒精灯不慎碰倒,立即用湿布盖灭
    D. 正在使用的家用电器着火,立即用水浇灭

  • 查看答案&解析 点击获取本科目所有试题
  • 举一反三:
  • [单选题]手拉绳子从井中提水桶,手受到竖直向下的拉力,施力物体是( )
  • A. 地球
    B. 水桶
    C. 手
    D. 绳子

  • [单选题]下列说法正确的一项是( )(3分)
  • A. 凡是含反式脂肪酸的食品都对人体健康有危害,因此,公众近期关注的反式脂肪酸问题绝不是危言耸听(alarmism)
    B. 在采用化学手段对油脂加氢,将不饱和脂肪酸变成饱和脂肪酸的过程中,会产生固态关固态的氢化植物油。
    C. 人体内低密度脂蛋白胆固醇含量的增加是大量吸入反式脂肪酸的结果,这一结果增加了患冠心病的危险。
    D. 反式脂肪酸常常出现在一些诱人的零食中,所以有效避反式脂肪酸的骚扰,必须克服吃零食的习惯。

  • [单选题]30. Stop _________ a noise in the library. The students are reading.books.
  • A. make
    B. to make
    C. makes
    D. making

  • [单选题]—Your French is so good. How long have you been in France?—??____________I was five.
  • A. Until
    B. Since
    C. When
    D. Before

  • [单选题]The Whites live in a small village. They have (11) small farm and they work there every day.They have a son, John. He is (12) .He lives with them,(13) he doesn’t like to work in the village. He (14) to work in a city. He can (15) the gui-tar, and he can play it (16) .Then he gets a job ( 17) a city.He (18)an art club.John likes his new work (19) .He is very(20) .( )11.
  • A. a
    B. an
    C. the
    D. /

  • [单选题]27. Why does eating apples make one-s stomach want less food?
  • A. Because apples are delicious.
    B. Because apples are full of fiber and water.
    C. Because apples are sour.
    D. Because only apples are filled with calories.

  • [单选题]下列词语中加点字的读音全都正确的一项是
  • A. 玷(diàn)污 带挈(qiè) 鞭笞(tái) 诘(jié)责
    B. 讪(shàn)笑 粗糙(cāo) 静谧(mì) 攒(cuán)成
    C. 恣(zì)睢 慰藉(jí) 污秽(huì) 忏(chàn)悔
    D. 滞(zhì)笨 尴尬(gà) 徘徊(huí) 绽(zhàn)开

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