题目内容

以下if语句语法不正确的是（）。

A. if(a>0):x=20else:x=200
B. if(a>0):x=20else:x=200
C. if(a>0):x=20else:x=200
D. if(a>0):x=20elsex=200

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执行下列Python语句后的显示结果是（）。i=1if(i):print(True)else:print(False)

A. 输出1
B. 输出True
C. 输出False
D. 输出0

如下代码可以实现当输入6的时候输出x>5,输入4的时候输出35: print("x>5") elifx>3: print("3

A. 对
B. 错

The present value of an expected future payment ________ as the interest rate increases.

A. falls
B. rises
C. is constant
D. is unaffected

If a security pays $55 in one year and $133 in three years, its present value is $150 if the interest rate is

A. 5 percent.
B. 10 percent.
C. 12.5 percent.
D. 15 percent.