【判断题】实物媒介是指实物上包含有某种信息,实物充当了信息传递的载体。
【简答题】细菌芽孢有何特性?对细菌本身和生产实践有何意义?说明芽孢的抗性机制。
【单选题】应用下面( )选项可以使直线、样条曲线、多线段绘制的图形闭合
【单选题】According to the passage, a typical businessman is usually considered to be ______.
B.
sociable and sympathetic
C.
ill-mannered and simple-minded
D.
shameless and ungraceful
【判断题】路径阵列中的路径可以是直线、多段线、三维多段线、样条曲线、螺旋、圆弧、圆或椭圆。( )
【单选题】Ill-treating your old parents is a typical________ of moral decline.