关税完税价格是纳税义务人向海关申报的价格，即货物实际成交价格。
参考答案：错
已知关于x的二次方程x2+2mx+2m+1=0.
(1)若方程有两根，其中一根在区间(－1，0)内，另一根在区间(1，2)内，求m的范围.
(2)若方程两根均在区间(0，1)内，求m的范围.
根据句意及首字母提示完成句子。
1. Tina is such a clever student that she always comes at the t________ of her class.
2. Mother added some s________ to the soup, but it wasn't still salty enough.
3. You should c________ your answers .before you hand in your papers.
4. Ducks can swim while c________ can't.
5. You need different kinds of i________ to make a delicious Beijing Duck.
