海关采取税收强制措施时，对纳税义务人未缴纳的税款滞纳金同时强制执行。（）
参考答案：对
My English teacher insisted that the exercises ____very difficult and that we ____them carefully.
A．were; must finish
B．be; finish
C．were; finish
D．be; finished
骨性关节炎关节液特点不包括哪一项（）
A.关节液黄色或草黄色
B.白细胞数>2乘以十的六次方／L
C.黏度正常
D.凝固试验正常
E.以上都不是
