工程施工图预算主要由（）组成。
A.直接费
B.其他直接费
C.间接费
D.利润
E.设备费
参考答案：A, B, C, D
—I wonder _______ like to be an astronaut (宇航员).
—I don't know, but I imagine it's exciting. [ ]
A. what is it
B. what it is
C. whether is it
D. whether it is
设A="12345678"，则表达式Val(Len(A，4)+Mid(A,4,2))的值为 ______。
A．123456
B．123445
C．8
D．6
