A. 银行业务包含如何教授孩子们管理和经营。B. 管理和经营银行使孩子们学到了很多有关银行业务的知识。 C. ……

单项选择题Precious metals such as gold and silver have been used as money.这句话的中文意思是（）

A. 贵重金属里包括黄金、白银和货币。
B. 诸如黄金和白银等这类贵重金属曾经作为货币使用过。
C. 贵重金属里的黄金、白银都被货币所替代。

判断题Legal protection on a brand comes into force only after registration.

判断题The trademark symbols TM and ? can be exchanged in a brand.

判断题A trademark may be regarded as a protection for a brand name.

判断题According to the writer, it is not necessary for a company to register a trademark,