点(-2,3)关于原点对称的点的坐标是[ ]
A.(2,3)
B.(-2,-3)
C.(2,-3)
D.(-3,2)
答案:C
----- I want to know if I _________ smoke here.
----- No, you ___________. Can’t you see the sign “NO SMOKING” there?
A.shall; won’t
B.may; mustn’t
C.can; needn’t
D.must; can’t
心为“五脏六腑之大主”的理论依据是()
A.心主血
B.心主神志
C.心主思维
D.心总统魂魄
E.心总统意志