皮皮学,免费搜题
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【单选题】
用户A和B要进行安全通信,通信过程需要确认双方身份,A、B通信使用()来对用户的身份进行认证。
A.
数字证书
B.
消息加密
C.
用户私钥
D.
数字签名
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举一反三
【单选题】In the generalized dividend model, if the expected sales price is in the distant future
A.
it does not affect the stock price
B.
it is the most important determinant of the current stock price
C.
it is equally important with dividends in determining the stock’s price
D.
it is more important than dividends in determining a stock’s price
【简答题】设L是曲线y=x^2从(0,0)到(1,1)的一段弧,则曲线积分 ______.
【单选题】The authors attitude toward the outlook of oil price in the future is______.
A.
pessimistic
B.
optimistic
C.
indifferent
D.
unclear
【单选题】If suppliers expect the price of their product to fall in the future, then they will
A.
decrease supply now
B.
increase supply now.
C.
decrease supply in the future but not now.
D.
increase supply in the future but not now.
【多选题】管理情绪的步骤为
A.
体察情绪
B.
表达情绪
C.
舒解情绪
D.
控制情绪
【单选题】如果两个平行反应均为一级不可逆反应,若E主>E副,提高收率Y应( )
A.
提高浓度
B.
降低浓度
C.
提高温度
D.
降低温度
【单选题】There is no evidence______ oil price will come down in the near future.
A.
which
B.
that
C.
where
D.
as
【单选题】In the generalized dividend model, if the expected sales price is in the distant future
A.
it does not affect the current stock price.
B.
it is more important than dividends in determining the current stock price.
C.
it is equally important with dividends in determining the current stock price.
D.
it is less important than dividends but still affects the current stock price.
【单选题】设L是从点【图片】 沿曲线【图片】到点(2,2)的弧段,则曲线积分【图片】
A.
0
B.
1
C.
-1
D.
其余选项都不对
【单选题】设L为曲线 从(0,0)到(2,0)的一段弧,则曲线积分 ( )
A.
(1)
B.
(2)
C.
(3)
D.
(4)
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