①“严严实实”中的“严”意思是________
A.紧密,没有空隙 B.认真,,不放松
C.厉害 D.使人感到敬畏
②“美餐”的“美”在这里的意思是________
A.美丽 B.令人满意
C.使……美丽 D.得意
③下列个组词中自行完全正确的一组是________
A.葱葱笼笼 密密层层
B.融化 苍翠 榛子
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