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【简答题】
制作一个登录表单页面,输入账号和密码,如果账号、密码相符,则显示“登录成功”,否则显示“登录失败”。请写出该页面的代码。
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参考答案:
举一反三
【简答题】下列所示四只硅二极管中,处于导通状态的二极管是A. B. C. D.
【单选题】在饮料和果酱的生产中,为了增加酸味和控制,常要加入酸味剂,下列物质中常用作食品酸味剂的是( )
A.
盐酸和磷酸
B.
柠檬酸和乳酸
C.
甲酸和磷酸
D.
硫酸和硝酸
【单选题】在饮料和果酱的生产中,为了增加酸味和控制酸度,常要加入酸味剂,下列物质中常用作食品酸味剂的是 。
A.
盐酸
B.
柠檬酸
C.
硝酸
D.
硫酸
【多选题】Which of the following statements is true?
A.
Hindus won't eat any meat.
B.
Muslims are usually vegetarians.
C.
Muslims won't eat pork.
D.
Hindus won't eat beef.
【单选题】Which of the following statements is INCORRECT?
A.
The woman appears to be a stranger of this area.
B.
The woman will be going northwards.
C.
The man thinks the route is not very complicated.
D.
The man would draw a rough sketch of the bank.
【简答题】下列所示四只硅二极管中,处于导通状态的二极管是
【单选题】下列所示四只硅二极管中,处于导通状态的二极管是
A.
B.
C.
D.
D
【单选题】Which of the following is not a component of a machine instruction?
A.
Op-code
B.
Port
C.
Operand
【判断题】在肉制品中最常用的调节酸味的物质主要是食醋和酸味剂。
A.
正确
B.
错误
【单选题】Which of the following statements is FALSE?
A.
When we relax the assumption of a constant debt-equity ratio, the FTE method is relatively straightforward to use and is therefore the preferred method with alternative leverage policies.
B.
When debt levels are set according to a fixed schedule, we can discount the predetermined interest tax shields using the debt cost of capital, rD .
C.
With a constant interest coverage policy, the value of the interest tax shield is proportional to the project's unlevered value.
D.
When the firm keeps its interest payments to a target fraction of its FCF, we say it has a constant interest coverage ratio.
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