【判断题】设(N,*)是代数系统,其中N 为自然数集,*为二元运算,定义为:对任何的a,b∈ N , 有a *b = a,则*是可结合的。( )
【单选题】在教育过程中建立和发展,构成幼儿园教育的核心要素,影响幼儿园教育质量的最重要因素是( )。
【简答题】幼儿园班级是在各种教育因素的共同作用下,给幼儿提供的一种整体的、动态的生活时空,是引导幼儿走向 和社会个性化进程中重要的教育环境A. 个体社会化
【单选题】Which of the following best describes the relation of paragraph 2 to paragraph 1?
A.
Paragraph 2 shows how the problem discussed in paragraph 1 arose.
B.
Paragraph 2 explains how the problem presented in paragraph 1 came to be solved.
C.
Paragraph 2 provides a more technical discussion of the problem introduced in paragraph 1.
D.
Paragraph 2 shows why the problem discussed in paragraph 1 was especially important to solve.
【简答题】paragraph 1 ________.