①甲最后读的书是乙读的第二本;
②丙最后读的书是乙读的第四本;
③丙读的第二本书甲在一开始就读了;
④丁最后读的书是丙读的第三本;
⑤乙读的第四本是戊读的第三本;
⑥丁第三次读的书是丙一开始读的那本.
设甲、乙、丙、丁、戊5个人最后读的书分别为A,B,C,D,E,根据以上情况确定他们5人读的第四本书各是什么书?
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2