—Do you have a basketball? —______.
A:Yes, I do
B:I do
C:Yes, I have
D:Yes, I've
如图,在长方体ABCD﹣A1B1C1D1中,AB=BC=2,AA1=1,则BC1与平面BB1D1D所成角的正弦值为( )
—That is only an excuse. The truth is he is too lazy to get up early.
If all of us pull together, there must be something we can do _____.
请据此谈一谈合作的重要性。
加尔文的先定论在宗教改革时期具有积极作用,它