皮皮学，免费搜题
登录
搜题
【单选题】
在计算机,保密是指A.
防止未经授权的数据暴露并确保数据源的可靠性
B.
防止未经授权的数据修改
C.
防止延迟服务
D.
防止拒绝服务
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The two friends were faithful through _____________.
A.
bread and butter
B.
part and parcel
C.
thick and thin
D.
tried and true
【单选题】一个投资者进入了一个远期合约的空头：在该合约中，投资者能以1.5000的汇率（美元/英镑）卖出100000英镑。当远期合约到期时的汇率为1.5200时，投资者的损益为（）美元。
A.
1000
B.
-1000
C.
2000
D.
-2000
【单选题】Two old gentlemen lived in a quiet street in Paris. They were friends and neighbors, and they often went for a walk together in the streets when the weather was fine. Last Saturday they went for a wal...
A.
in
B.
on
C.
of
D.
with
【单选题】一种股票预计在2个月后会每股支付4美元红利,6个月后再支付4美元红利。股票价格为45美元,无风险年利率为6%(对任何到期日适用,连续复利计息)。一位投资者刚刚持有这种股票的12个月远期合约的空头头寸。此时远期价格以及远期合约的初始价值为
A.
远期价格为39.45美元；远期合约的初始价值为0
B.
远期价格为39.45美元；远期合约的初始价值为正
C.
远期价格为38美元；远期合约的初始价值为0
D.
远期价格为38美元；远期合约的初始价格无法判断
【简答题】完形填空。 One day, two friends were walking through the desert.-- 1 the journey they had a quarrel, and one friend hit 2 one in the face. The one who was hit was hurt, 3 he didn't say anything. Instead, h...
【单选题】--- The two old friends were ______ busy ______ with each other ______ the time. --- Yes. They hadn’t met for long.
A.
too; to talk; to forget
B.
too; talking; to forget
C.
so; to talk; that they forgot
D.
so; talking; that they forgot
相关题目：