一个国家出口数量的变动主要取决于( )
A．国内经济状况B．贸易伙伴的经济状况C．国内价格D．贸易伙伴的价格
参考答案：B
—How do you like our new teacher?
— Very ______. He often says something new to make us laugh.
A．imaginative
B．humorous
C．modest
D．outgoing
丝有粗细、长短之分，但要求切丝必须均匀。( )
