Photoshop矩形选框工具不可以创建的选区形状是______。
A、正方形
B、矩形
C、椭圆形
D、十字形

单项选择题An argument using reasoning by principle has to include at least two premises: the principle is one, and the other premise is the statement showing that the principle can be applied to the particular case in question, which may sometimes be implicit, though. A、正确 B、错误

单项选择题什么是语言的建筑材料？ A、语音 B、词汇 C、语法 D、文字