输入动物、动物产品、植物种子、种苗等其他繁殖材料的,必须事先提出申请,办理检疫审批手续( )
参考答案:对
动脉粥样硬化的早期病变中,下列哪种细胞最早迁入内膜()。
A.平滑肌细胞
B.淋巴细胞
C.单核细胞
D.中性粒细胞
E.纤维母细胞
— Jack, this is the third time that you have been late this week.
— Sorry, sir, but I was ______ for 15 minutes on the way here in the traffic jam.
A.held up
B.put up
C.taken up
D.given up