银行既可以作为承销商承担企业短期融资券的发行工作，从而获得一定的承销费，也可以直接购买短期融资券，获得投资收益。( )
参考答案：对
用所给单词的适当形式填空
1. They refused to give any interviews to __________(journal).
2. Edison won his spurs as an __________(invent) while rather young.
3. The piece of bamboo makes a __________(music) sound.
4. My parents are worried about the __________(safe) of me all the time.
5. The air was __________(pollution) by factory smoke.
对输血前血袋中出现不能输注的情况的描述哪一项是错误的（）
A.血浆呈黄褐色
B.血浆呈玫瑰红色
C.血浆呈橙黄色，血细胞沉淀
D.血袋中有较多的泡沫
E.血浆浑浊，有絮状物
