【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】In the marriage union, the independence of the husband and wife will be equal, their dependence mutual, and their ______ reciprocal.
【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】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】The livelihood of each species in the vast and intricate assemblage of living things depends on the existence of other organisms. This interdependence is sometimes subtle, sometimes obvious. Perhaps t...
A.
How parasites reproduce.
B.
How organisms react to invaders.
C.
How antibiotics work to cure disease.
D.
How the immune system of vertebrates developed.
【单选题】下列影像学方法哪个对人体损伤最小Which of the following medical imaging methods is the least harmful to humans?
【简答题】社会意识的本质特点在于A. 社会意识是对社会存在的反映,具有相对独立性