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A new weapon is on the way in the fight against smoking in Europe. Soon when smokers buy cigarettes, they might see a shocking photo of a blackened lung or a cancer patient staring back at them from the packet. Some boys may think of smoking as cool and sexy. Their friends won’t agree when they see their packets of cigarettes lying on the table. The European Union announced on October 22, that it had chosen 42 photos that showed the damage cigarettes could do to the body. It called on member nations to put these pictures on packets to discourage young smokers. To catch the attention of teenagers, the special packets warn of long-term medical dangers, like cancer. Short-term effects, like bad skin, are also on the list. “The true fact of smoking is disease, death and horror. That is the message we should send to the young,” said David Byrne, an EU health official. “Hopefully these pictures will shock students out of their love for cigarettes.” The EU head office hoped the pictures would work better than current written warnings on packs of cigarettes. The warning included “smoking kills” and “smoking can lead to a slow and painful death.” So far, Ireland and Belgium have shown interest in the photos. Canada has used similar pictures and warnings on cigarette packs since 2000. The country has recently seen a fall in the number of smokers. According to studies, smoking is the single biggest cause of avoidable death in EU. Every year more than 650,000 smokers die, more than one person a minute. 小题1:What would be the best title for the text? A.New Ways to Stop Smoking. B.Pictures to Shock Smokers. C.New Packers of Cigarettes. D.Dangers of Smoking. 小题2:Which of the following is NOT the true face of smoking? A.Disease. B.Death. C.Horror. D.Happinese. 小题3:We can learn from the test that _______. A.The EU countries have put the new warning method into practice B.only a small number of the EU countries have used the new warning method C.the new warning method has worked in some EU countries D.countries in the EU still use the old warning method 小题4:Which country is most successful in stopping smoking? A.Ireland. B.Belgium. C.Canada. D.EU 小题5:The underlined sentence in the last paragraph suggests that ________. A.It’s hard to stop smoking in EU B.deaths caused by smoking could have been avoided C.smoking is the biggest cause of deaths in EU D.EU has the largest number of deaths caused by smoking
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【单选题】The school dinning room _______ as a meeting place for teachers and students.
A.
treats
B.
admits
C.
functions
D.
uses
【多选题】下列有关 Ion Torrent 的测序原理说法正确的是()。
A.
技术核心是半导体芯片上的离子流测序,类似焦磷酸测序。
B.
核苷酸依次流过半导体芯片,通过对DNA复制过程中产生的离子流进行实时测定而反映DNA的延伸及性质。
C.
DNA链每延伸一个碱基时,就会释放一个质子,导致局部PH的变化。
D.
DNA聚合酶以单链DNA为模板,按照碱基互补原理,合成互补的DNA链。
E.
如果碱基不匹配,则无氢离子释放,也就没有电压信号的变化。
【简答题】已知 DNA 的序列为: W : 5 ’ -AGCTGGTCAATGAACTGGCGTTAACGTTAAACGTTTCCCAG-3’ C : 3 ’ -TCGACCAGTTACTTGACCGCAATTGCAATTTGCAAAGGGTC-5’ 上链和下链分别用 W 和 C 表示,箭头表示 DNA 复制时复制叉移动的方向。试问: ( 1 )哪条链是合成随从链的模板? ( 2 )试管中存在单链 W ,要...
【单选题】在HTML文档头部中嵌入JavaScript,应该使用的标记是
A.
……
B.
……
C.
……
D.
……
【单选题】IP地址159.226.181.1是一个( )
A.
A类地址
B.
B类地址
C.
C类地址
D.
D类地址
【判断题】拥有良好的人际关系,是一个人心理健康的重要标志
A.
正确
B.
错误
【多选题】如图所示,橡皮筋的一端固定在 O 点,另一端拴一个物体, O 点的正下方 A 处有一垂直 于纸面的光滑细杆, OA 为橡皮筋的自然长度。已知橡皮筋的弹力与伸长量成正比,现用 水平拉力 F 使物体在粗糙的水平面上从 B 点沿水平方向匀速向右运动至 C 点,已知运动 过程中橡皮筋处于弹性限度内且物体对水平地面有压力,下列说法正确的是
A.
物体所受水平面的摩擦力保持不变
B.
物体所受地面的支持力变小
C.
水平拉力 F 逐渐增大
D.
物体所受的合力逐渐增大
【单选题】The living room is clean and tidy, with a dinning table already ________ for a meal to be   cooked.
A.
laid
B.
laying
C.
to lay
D.
being laid
【简答题】解释实验现象:少量的金属钠溶解于液氨中形成蓝色溶液,放置一段时间后,蒸干此溶液得到少量白色固体。【要求:说明理由,并写出相关反应方程式。】
【简答题】解释实验现象 : (1)少量的金属钠溶解于液氨中形成蓝色溶液 , 放置一段时间后 , 蒸干此溶液得到少量白色固体。【要求:说明理由,并写出相关反应方程式。】 (2) 解释实验现象:向酸化的亚硝酸钾溶液中滴加 CoCl 2 溶液,有黄色的沉淀生成。【要求:说明理由,并写出相关反应方程式。】
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