【单选题】设 r=10,下列选项中,计算结果为 314 的表达式是( )。
A.
Math.PI.toFixed(2) * r * r
B.
Math.ceil(Math.PI) * r * r
C.
Math.floor(Math.PI) * r * r
D.
Math.round(Math.PI) * r * r
【单选题】关于math库说法错误的是( )。
A.
可以通过 “ from math import * ” 的方式导入
C.
使用dir(math)可以看到math库中所有的内建函数
【单选题】Sequential circuit is a common logic device whose output values, at a given instant, depend upon its input values and the internal state at that instant, and whose internal state depends upon the(66)p...
【多选题】关于math模块,下列选项中说法正确的是()
A.
math模块中提供了4个常数,分别为pi、e、inf、nan
B.
math模块中floor()函数表示向下取整
C.
.math模块中fsum()函数可以提高浮点数的准确度
【单选题】Our preferences for certain colors are ______.
A.
associated with the time of the day
B.
depended on our character
C.
linked with our primitive ancestors
D.
partly due to psychological factors
【单选题】What does the man think of Frank? 查看材料
D.
He is a flexible person.
【单选题】It can be inferred from the article that a good educational system must ______.
A.
not depend on teachers
B.
make use of varying methods of teaching
C.
place a renewed emphasis on science
D.
not organize their instruction