风冷溢流阀的设定压力为（）。
A、4MPa
B、6MPa
C、11MPa
D、5MPa
参考答案：D
已知等比数列{an}中，a6-2a3=2，a5-2a2=1，则等比数列{an}的公比是（ ）
A．-1
B．2
C．3
D．4
We don't like him because he is always speaking highly of the part he________in the group. [ ]
A. makes
B. takes
C. does
D. plays
