题干
I’m quite able to afford the clothes. It’s _______ that I don’t want to put you into the trouble of changing a large note.
A：likely
B：simply
C：slightly
D：extremely
答案(点此获取答案解析）
B
｛a1, a2, a3, a4｝,且M∩｛a1 ,a2, a3｝="{" a1，a2}的集合M的个数是 （ ）