We carefully compared the result of the first experiment with_______ of the second one.
A:it
B:that
C:the ones
D:this
A. B. C. D.
E. F. G. H.
⑴on the box ____
⑵go fishing ____
⑶go swimming ____
⑷play table tennis ____
⑸fly kites ____
⑹in the box ____
⑺under the tree ____
⑻in the lake ____
椭圆x2a2+y2b2=1a>b>0的离心率为e=12,右焦点为Fc,0,方程ax2+bx-c=0的两个实根分别为x1和x2,则点Px1,x2( )
( )This is the hall in my school.We can sing,dance and act a short play in it.