Scientists propose placing seismic stations on the floor of the Pacific Ocean to warn threatened coastal communities on the northwestern coast of the United States of approaching tidal waves caused by earthquakes. Since forewarned communities could take steps to evacuate, many of the injuries and deaths that would otherwise occur could be avoided if the government would implement this proposal.以下哪个问题最能衡量实施这一提议的效果?
(A)沿海地区上一次受海啸侵袭是什么时候?
(B)要在低于海平面多少距离的深度建立监测站?
(C)收到海啸侵袭的警报之后,沿海地区的人口能否有充足时间撤离?
(D)在海啸侵袭之后多久撤退的人才能回到原来的住址?
It is true of both men and women that those who marry as young adults live longer than those who never marry. This does not show that marriage causes people to live longer, since, as compared with other people of the same age, young adults who are about to get married have fewer of the unhealthy habits that can cause a person to have a shorter life, most notably smoking and immoderate drinking of alcohol.以下哪个选项最能为支持以上观点?
(A)婚姻可能使人更少去锻炼身体,从而影响到健康。
(B)有烟酒等不良习惯的已婚人士相比未婚人士更可能戒绝这些不良习惯。
(C)已婚青年中大多数戒绝不良习惯的人不会在之后再染上不良习惯。
(D)在拥有不良习惯的青年群体中,不结婚的人和结婚的人拥有相似的寿命。
“哈佛商学院的MBA毕业生能拿到比其他学校MBA毕业生更高的平均工资。这足以说明哈佛商学院MBA班比其他学校更能教会人怎么挣钱”。以下哪项能够最有力地反驳上述推论?
A.其他学校MBA毕业生中也有一些工资超过哈佛商学院的MBA毕业生
B.那是因为哈佛MBA学费比别的学校高
C.哈佛招收的MBA学生进校时就比其他学校MBA学生的平均年薪要高
D.哈佛MBA毕业生中也有一些后来找不到好工作的