通过地层测试所实测的渗透率是（）。
A、平均有效渗透率
B、相对渗透率
C、绝对渗透率
D、总渗透率
参考答案：B
300减去18与12的积，所得的差除以14，商是多少？正确列式是[ ]
A.（18×12 - 300）÷14
B. 300 -18×12÷14
C.（300 - 18×12）÷14
-How do you__________ we go to Beijing for our holidays?
-I think we'd better fly there. It's much more comfortable. [ ]
A.insist
B. want
C. suppose
D. suggest
