①在“设置单元格格式”对话框的“边框”选项卡中,单击“外边框”,预览图中就会显示出效果图,再单击“确定”
②将单元格A12:E23选中
③右击鼠标,在快捷菜单中单击“设置单元格格式”
④在“设置单元格格式”对话框的“边框”选项卡中,线条样式选为双横线,颜色为蓝色
A.①②③④ | B.②③④① | C.②①③④ | D.①③②④ |
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