在中档宴席中，咸味面点约占宴席面点总量的
A．50%
B．60%
C．70%
D．80%
参考答案：A
______I am concerned，the price of the computer is much too high，so I can’t afford it.
A．As long as
B．As far as
C．As well as
D．As often as
砂岩的孔隙直径大于（）μm，流体可以通过，称为有效孔隙。
A.0.1
B.0.2
C.0.3
D.0.4
