语体有有哪两种类别？
参考答案：语体有有口语、书面两种类别。
-That's me when I graduated from college.See what I look like now.
-Why not take up exercise to improve your________?[ ]
A．look
B．form
C．shadow
D．figure
下列流水施工参数中，属于空间参数的是( )。
A．流水节奏 B．施工过程 C．流水步距 D．施工段
