你可能感兴趣的试题

单项选择题

‎ADB is a  business which  is owned  by its workers. The workers share the profits and they each  have a vote on  how the  business is run.‎
‎Which of the following best describes ADB?‎

A．Public sector
B．Private sector
C．Not-for-profit
D．Co-operative

判断题

凝胶基质的离子交换剂因其亲水强，生物相容性好，交换空间大，适合于生物大分子物质的分离。