题目

______, a small advertisement held my attention, which read Easy job．Good wages. No experience necessary. A . Looking through the newspaper B . While I was looking through the newspaper C . To look through the newspaper D . I was looking through the newspaper 答案：B高三（1）班有学生50人，男30人，女20人；高三（2）班有学生60人，男30人，女30人；高三（3）班有学生55人，男35人，女20人．（1）从高三（1）班或（2）班或（3）班选一名学生任学生会主席，有多少种选法？（2）从高三（1）班、（2）班男生中，或从高三（3）班女生中选一名学生任学生会主席，有多少种不同的选法？