对某外科ICU住院病人的医院感染进行监测，某月1日有病人5人，该月新收治病人20例，监测发生医院感染8例。该月医院感染发病率为 （）

A.8/20

B.8/25

C.8/12

D.8/17

E.8/33

Mary _______ with Jenny, and they are studying at the same middle school.

A．comes to terms

B．is on close terms

C．is on the good terms

D．makes terms