图中的独立集是指图当中点的集合,其任意两点之间不存在边。()
查看答案
在F[x]中,有f(x)+g(x)=h(x)成立,若将x用矩阵x+c代替,可以得到()。
A. f(x+c)+g(x+c)=ch(x)
B. [f(x)+g(x)]c=h(x+c)
C. f(x+c)g(x+c)=ch(x)
D. f(xc)+g(xc)=h(x+c)
有矩阵Ai和Aj,那么它们的乘积等于()。
Ai+j
B. Ai/j
C. Ai-j
D. Aij
Whichofthefollowingstatementaboutusingquotationisincorrect?
A. Usinglongquotations,aslongaspossibletoshowyourknowledge.
B. Payingattentiontothecredibilityoftheoneyouquotefrom.
C. Tomakequotesinteresting,introducetheexpertswiththeirbackgroundinformation.
D. Keepingtheexpert'swordsbrief,andreadtheminalivelyandconvincingmanner.
Ifwewanttousequestionstobeginourspeech,wecanuseyes/noquestions,rhetoricalquestionsandsurvey.
A. 对
B. 错