证券公司自营业务的特点有( )。
A.决策的自主性
B.投资的方便性
C.交易的风险性
D.收益的不稳定性
参考答案:A,C,D
用所给词的适当形式填空。
1. You are _____ (suppose) to meet at the bus stop.
2. He told me he _____ (call) me the next morning.
3. My friends will come to my house _____ (study).
4. She was mad at _____ (lose) her key to her car.
5. This is a _____ story. I'm very _____ at it.(surprise)
下列不符合汉坦病毒的特征的是()
A.汉坦病毒属
B.布尼亚病毒科
C.为单股DNA病毒
D.圆形或卵圆形
E.病毒直径平均80~115nm