【单选题】设集合M={y|y=x 2 +1,x∈R},N={x|x=2a 2 -4a+1,a∈R},则集合M与N的关系为( )
【判断题】专利申请权、专利权可以出卖、赠与、抵押,也可以作价投资入股。
【判断题】专利申请权、专利权可以出卖、赠与、抵押,也可以作价投资入股。
【判断题】Federal courts deal with cases which arise under theU.S. Constitution, treaties or federal law and any disputes involving the federal government.
【单选题】Which of the following statements is TRUE about Chin's wife?
A.
She sold her favorite gold hairpin with no hesitation.
B.
She served her husband and his friend very well.
C.
She understood her husband and tried to satisfy him.
D.
She always did her housework without any complaint.
【简答题】What are the difference s in shape and effect on dress between Chin a and the West?
【简答题】已知集合M={1,2,3,…,n}(n∈N*),若集合 ,且对任意的b∈M,存在a i ,a j ∈A(1≤i≤j≤m),使得b=λ 1 a i +λ 2 a j (其中λ 1 ,λ 2 ∈ {﹣1,0,1}),则称集合A为集合M的一个m元基底. (Ⅰ)分别判断下列集合A是否为集合M的一个二元基底,并说明理由; ①A={1,5}M={1,2,3,4,5}; ②A={2,3},M={1,2,3,4,...