问题
多项选择题
矿井通风的任务是（）。
A、供人员呼吸
B、防止煤炭自燃发火
C、冲淡和排除有毒有害气体
D、创造良好的气候条件
E、提高井下的大气压力
答案
参考答案：A, C, D
搜题请搜索小程序“爱下问搜题”
矿井通风的任务是（）。
A、供人员呼吸
B、防止煤炭自燃发火
C、冲淡和排除有毒有害气体
D、创造良好的气候条件
E、提高井下的大气压力
参考答案：A, C, D
| 阅读理解。 | ||
| Come and see all the interesting animals here. The new tigers from America are dancing . The penguins are playing volleyball. The monkeys are playing the guitar. The dogs are doing math. The dolphins are playing with balls. The birds from New Zealand are waiting to meet you. You can see everything you want here! Keep the zoo clean! Don't give food to the animals or go near them.
| ||
| 1. How many kinds of animals does this passage mention? A. Six B. Seven C. Eight D. Five 2. The zoo is open at _____. A. 9:00a.m. on Monday B. 23:00p.m. on Sunday C. 9:30a.m. on Friday D. 8:00a.m. on Wednesday 3. The zoo opens _____ days in a week. A. three B. seven C. two D. six |