—I feel very thirsty and hungry after a long walk.
—Would you like some ________ and ________?
A:apple juice;sandwich
B:apples juice;sandwiches
C:apple juice;sandwiches
若从10~99这连续90个正整数中选出一个数,其中每个数被选出的机会相等,则选出的数其十位数字与个位数字的和为9的概率是