题干
---Thanks for your trouble.
---Not at all. I’m _____ pleased to help you.
---Not at all. I’m _____ pleased to help you.
A：too much
B：too only
C：only too
D：so much
答案(点此获取答案解析）
C
的右支上一点，M、N分别是圆（x＋5）2＋y2＝4和（x－5）2＋
行第
列的数为
，则 
＝ （ ） 