【单选题】在弱酸性条件(pH3~3.5)下,重金属检查用的显色剂是()
【单选题】下列动画作品形象中()不是来自于美国迪斯尼公司。
【单选题】Strayer discourages drivers from talking about business on cell phones while driving because_________.
A.
they tend to forget the details of a conversation
B.
both the driver and his agent happen to be driving
C.
it might not be good for the driver's memory
D.
the other passengers would overhear the conversation
【单选题】下列关于注释的描述中,错误的是()。
A.
C语言中的注释有两种类型:单行注释和多行注释
C.
单行注释用“//”符号表示,后面为被注释内容
【简答题】金钱草来源于 科植物 的干燥 ,主产于 ;广金钱草来源于 科植物 的干燥 ,为 常用;连钱草来源于 科植物 的干燥 ,为 常用。
【单选题】'I ______ in the room, watching TV broadcast about the earthquake.' I told the policeman who had driven here to question me. [ ]