【简答题】Arduino 中, INPUT/OUTPUT 表示数字 I/O 的方向,其中常量 INPUT 表示 , OUTPUT 表示 。
【判断题】Arduino数字引脚当作 INPUT 或 OUTPUT 都可以。
【简答题】在整个北半球范围内,从南到北构成了大气的“三圈环流”,其中:( )( )是正环流( )是反环流
【简答题】Arduino程序中,若有常量input,表示________模式。
【单选题】As a result of the epidemic of AIDS in Africa, ______.
A.
the life span for most of the people has been reduced by 40 years
B.
most young people have been infected with human immunodeficiency virus
C.
people will have to learn to live with the disease for over 50 years
D.
the achievements made in preserving people's health in the past will be wiped off