下列不属于网络拓扑结构形式的是______。
A. 星型
B. 环型
C. 总线型
D. 分支型
If cylinder P has a height twice that of cylinder Q and a radius half that of cylinder Q, what is the ratio between the volume of cylinder P and the volume of cylinder Q
A. 1:8
B. 1:4
C. 1:2
D. 1:1
E. (E) 2:1
If r and s are integers and rs+r is odd, which of the following must be even
A. r
B. s
C. r+s
D. rs-r
E. (E) r2+s
关于咨询师素质,下列说法错误的是______。
A. 以知识、经验积累为前提
B. 与智力有关,且绝对相关
C. 培养想象力、好奇心和求知欲
D. 要排除影响思维创新的因素