纳税人在开采主矿产品的过程中伴采的其他应税矿产品，凡未单独规定适用税额的，一律按主矿产品或视同主矿产品税目征收资源税。（）
参考答案：对
用所给词的适当形式填空。
1. Linda ______ (do) some housework yesterday morning.
2. We ______ (go) to school on foot last year.
3. Let's ______ (have) a walk.
4. She practices ______ (speak) Chinese every day.
5. We ______ (visit) Mr. Liu last Sunday.
CCTRCH的复用和映射原则是什么？
