—Sir, would you mind my sitting next to you?—__________. My father will sit here in a minute.
A:Never mind
B:Not at all
C:Of course not
D:You'd better not
从南极到北极,纬线的度数变化规律是( )
在 里填上“+”、“-”、“×”或“÷”
45 9=5____ ; 7 6=42____
A 、+ B、- C、× D、÷
There aren't ____(some/ any)chairs for me.