教师劳动的特点包括()
A.系统性
B.示范性
C.学习性
D.创造性
参考答案:B, D
How do you say 15,858?
A. Fifteen thousands, eight hundred and fifty-eight
B. Fifteen thousand, eight hundreds and fifty eight.
C. Fifteen thousand, eight hundred and fifty-eight
D. Fifteen thousand and eight hundred and fifty-eight.
按实物测绘机床电气设备控制线路图时,应先绘制()。
A、电气原理图
B、框图
C、接线图草图
D、位置图