【单选题】Which of the following conditions results in true when the initial variable contains the letter A in either uppercase or lowercase?
A.
if (initial ='A' || initial ='a')
B.
if (initial =='A' || initial =='a')
C.
if (initial ='A' and initial ='a')
D.
if (initial =='A' && initial ='a')
【单选题】0-1岁为语言的发生期。包括( )三个阶段。
【简答题】听力原文:IBS=Initial Business Supplies LG=Lacey Graphics IBS: Initial Business Supplies. Good morning. LG: Good morning. This is Lacey Graphics. I'd like to place an order, please. IBS: OK, I'll just get ...
【多选题】下列说法错误的是 。
A.
空间问题中,球形铰链的约束力一般可表示为 3 个方向的分力
C.
空间力系的 6 个平衡方程中,只能采用 3 个力矩方程
D.
在空间问题中,固定端的约束力最多可达 6 个
【判断题】我国出现相对过剩的根本原因是存在大量的重复建设。( )
【简答题】A.primary B.original C.previous D.initial