在股指期货套期保值中,当现货总价值和每份期货合约的价值确定时,β系数越大,所需买卖的期货合约数就越多。 ( )
参考答案:对
根据句意,用所给单词的适当形式填空。
1. All flights have ______ (cancel) because of bad weather.
2. Thank you very much for your ______ (introduce).
3. This railway line _______ (connect) London to Edinburgh.
4. He had finally ______ (achieve) success.
5. We are ______ (pride) of what he did.
男性患者,60岁,上腹痛2年,胃镜检查提示幽门螺杆菌(Hp)相关胃炎。此患者最好的治疗方法是()
A.抗酸剂
B.黏膜保护剂
C.根除幽门螺杆菌
D.定期复查胃镜
E.解痉止痛药