下列关于股票的表述中，正确的是（）
A、股票是设权证券
B、股票是有价证券
C、股票是低风险证券
D、股票是非流通证券
参考答案：B
I would rather you _______me the truth; then what has happened would not have happened. [ ]
A. to tell
B. tell
C. told
D. had told
(四级)邮政通信企业具有（）两大性质。
A、服务性
B、独立性
C、公用性
D、全程全网
