最新提问
我的动态
登录后查看动态
题目内容双击单词支持查询和收藏哦～
On a certain multiple-choice test, 9 points are awarded for each correct answer, and 7 points are deducted for each incorrect or unanswered question. Sally received a total score of 0 points on the test. If the test has fewer than 30 questions, how many questions are on the test?
B显示答案
以上解析由 考满分老师提供。
