根据伦理学的观点,下列属于伦理利己主义的是()。
A.极端利己主义
B.温和利己主义
C.合理利己主义
D.以上都是
参考答案:D
硫酸镁的药理作用有()
A.抗消化性溃疡
B.导泻作用
C.利胆作用
D.中枢抑制作用
E.抗惊厥作用
Robinson Crusoe is universally considered as Daniel Defoe’s masterpiece. Robinson, apparently, is cast as a typical 18th-century pioneer colonist. Give a brief comment on Robinson Crusoe.