[填空题]
阅读下面的短文，文章中有5处空白，文章后面有6组文字，请根据文章的内容选择 5组文字，将其分别放回文章原有位置，以恢复文章原貌。

{{B}}The Dangers of Secondhand Smoke{{/B}}
Most people know that cigarette smoking is harmful to their health. Scientific research shows that it causes many kinds of diseases. In fact, many people who smoke get lung cancer. However, Edward Gilson has lung cancer, and he has never smoked cigarettes. He lives with his wife, Evelyn, who has smoked about a pack of cigarettes a day throughout their marriage.{{U}} (46) {{/U}}
No one knows for sure why Mr. Gilson has lung cancer. Nevertheless, doctors believe that secondhand smoke may cause lung cancer in people who do not smoke because nonsmokers often breathe in the smoke from other people’s cigarettes.{{U}} (47) {{/U}}The US Environmental Protection Agency reports that about 53,000 people die in the United States each year as a result of exposure to secondhand smoke.
The smoke tha

最新试题

• ●    石油蒸气爆炸极限与危险性，下列说法正确的是（）.
• ●    行为组织理论认为组织是一种心理的、社会的系统，重视组织结构哪个因素对组织结构的影响（）
• ●    设置电脑的显示分辨率及颜色数（）
• ●    [填空题]计量现场作业终端登录管理密码验证错误超过规定次数后，计量现场作业终端将被（_），（_）才能
• ●    [判断题]进路表示器在其主体信号机开放时点亮,用于区别进路开通方向或双线区段反方向发车,不能独立构成
• ●    [单选题]DC600V提速客车Q30为（ ）电源空气开关