单只的鞋、袜、手套属有商业价值的广告品和货样，仍要计征关税。 ( )
参考答案：错
My e-mail ______ to you last night. Have you received it ______ ? [ ]
A. sent; yet
B. is sent; already
C. was sent; yet
常书鸿是学什么出身的（）
A、化学
B、历史
C、美术
D、考古
