出口产品质量检验工作职能有______。
A．鉴别职能B．把关职能C．预防职能D．报关职能
参考答案：A,B,C,D
科学发展观的核心是( )。
A．全面的发展
B．协调的发展
C．可持续的发展
D．以人为本
She couldn't find her pen. She didn't remember _____. [ ]
A. whose it was
B. where it was
C. what it was
D. when it was
