X元素的原子核内有11质子,Y元素的原子最外层上有6个电子,X和Y形成化合物的化学式为 [ ]
A. XY
B. XY2
C. X2Y
D. X2Y3
答案:C
—Perhaps,what I steal(偷) on the Happy Farm is not vegetables.That is “loneliness”.
— This year “loneliness” is very popular.
A.I don’t think so.
B.I quite agree with you.
C.That’s a good idea.
D.I’m not sure if you are right.
根据票据法律制度的规定,下列涉外票据的票据行为中,可以适用行为地法律的有()。
A.票据追索权行使期限的确定
B.票据的背书
C.票据的付款
D.票据的承兑