[多选题] 古典哲学的代表性人物( )
A.康德
B.黑格尔
C.费尔巴哈
D.笛卡尔

有以下程序
　　main(　)
　　{　char str[　]="xyz",*ps=str;
　　　while(*ps) ps++;
　　　for(ps--;ps-str＞=0;ps--) puts(ps);}
　　执行后输出结果是 （）

The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise. Millions of individuals became (1) in a variety of aerobic activities, and (2) thousands of health spas (3) around the country to capitalize on this (4) interest in fitness, particularly aerobic dancing for females. A number of fitness spas existed (5) to this aerobic fitness movement, even a national chain with spas in most major cities. However, their (6) was not on aerobics, (7) on weight-training programs designed to develop muscular mass, (8) , and endurance in their primarily male (9) . These fitness spas did not seem to benefit (10) from the aerobic fitness movement to better health, since medical opinion suggested that weight-training programs (11) few, if (12) , health benefits. In recent years, however, weight training has again become increasingly (13) for ma
A. recommends
B. reassures
C. speculates
D. mediates

严×（男）25岁，一九八二年刚满1岁时，因父亲去世，母亲与外乡的严平×结婚，他便随母亲与继父一起生活，改名严×。二十多年来与老家的亲友断绝了往来。
一九九六年，严×考入县高中，与同班女同学陈×关系较好，高中毕业后，二人确立了恋爱关系，双方父母也积极支持。
二零零六年，陈同其父母到严家作客，聊起家常，方知严的母亲与陈的祖母是同胞姐妹，严与陈的父亲是姨表兄弟，严与陈是表叔与表侄女关系。二人能否结婚，双方家长都认为不同辈份不能结婚。
试分析：他们能否结婚？是否属于婚姻法所规定的禁止情况？