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{{B}} Diet, Alcohol Linked to Nearly One
Third of Cancers{{/B}} Diet is second only to tobacco as a leading{{U}} (51) {{/U}}of cancer and, along with alcohol, is responsible for nearly one third of cases of the disease{{U}} (52) {{/U}}developed countries, a leading researcher said on Tuesday. Dr. Tim Kev, of the University of Oxford, told a cancer conference that scientists are still discovering how certain foods contribute to{{U}} (53) {{/U}}, but they know that diet, alcohol and obesity (肥胖){{U}} (54) {{/U}}a major role. "Five percent of cancers could be avoided{{U}} (55) {{/U}}nobody was obese(肥胖的)," he said. While tobacco is linked to about 30{{U}} (56) {{/U}}of cancer cases, diet is involved in all estimated 25 percent and alcohol{{U}} (57) {{/U}}about six percent. A. decisions B. questions C. answers D. needs [单选题]关于明挖法施工的地下车站结构防水措施,属于主体防水措施的是( )。
A.金属板 B.外贴式止水带 C.中埋式止水带 D.自防水混凝土 [单项选择]（）段誉听到什么笑出声来，被干光豪和葛光佩发现了？
A. 干光豪说的话 B. 葛光佩说的话 C. 两人亲热时发出的呻吟声 D. 以上均错 [单选题]（）分别安装在上臂一端和底架上，用于调整最大升弓高度和滑板运动轨迹。( )
A.阻尼器 B.弹簧 C.上导杆 D.下导杆 [多项选择]依《海牙规则》的规定，关于6800箱变形的蜡烛，下列选项正确的是( )。
A. 承运人不应赔偿收货人的损失，因为承运人有过失免责 B. 承运人应当赔偿收货人的损失，因为承运人负有管货责任 C. 如果承运人拒绝赔偿，收货人可以向保险人提出索赔请求 D. 收货人不应向发货人索赔，因为货损是在运输途中发生的 [简答题]康明斯发动机P-T燃油系统的工作原理是什么？
[简答题]回转窑燃烧器冷却水中断的原因有
[简答题]AnimalGenetics公布了一组关于131只猫的血型数据，如下：假设血型为AA是显性纯合子，AB为杂合子，BB为阴性纯合子。请计算在这些观察到的样本中基因和基因型频率？如该群体处于Hardy-Weinbery平衡时的基因型频率应该是多少？基因型：AAABBB个体数：100724
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