显失公平的民事行为，经（）认定，该项民事行为便可变更或者撤销。
A．工商行政部门
B．消费者协会
C．人民法院
D．仲裁机构
参考答案：C
Students in our school are encouraged to________more activities after class in order to broaden
their knowledge. [ ]
A. attend
B. join
C. take part
D. participate in
我国对美，日输华货物木质包装主要关注的有害生物是松材线虫。 ( )
