如图所示的电路是某同学设计的电路图，圆圈内是电表，请你利用学过的电压表和电流表的知识在圆圈内填上适当的电表．
In the evening there was a barbecue, with the whole village ____ the fun. [ ]
A. joined
B. joined in
C. joining
D. joining in
王先生投资5万元到某项目，预期名义收益率为12%，期限为3年，每季度付息一次，则该投资项目的有效年利率为( )。
A．10%
B．12.54%
C．12.55%
D．14%
