有杨树120棵,________,松树有________棵.
② 杨树比松树多60% A.120÷60%
②杨树是松树的60% B.120×(1+60%)
③ 松树是杨树的60% C.120×(1-60%)
④ 松树比杨树少60% D.120×60%
⑤ 松树比杨树多60% E.120÷(1+60%)
⑥杨树比松树少60% F.120÷(1-60%)
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