温柔小刀求教三

appledandan

19. there are at least three people in the room. at most two people in the room recognize each other. at least one person in the room recognizes everybody else in the room.
which one of the following is not consistent with the above?
(a) four people are in the room
(b) no two people in the room recognize each other.
(c) at most one person in the room recognizes everybody else in the room.
(d) anyone in the room who recognizes any other person in the room is also recognized by that person..
(e) two people in the room recognize every one else in the room.
d is right. but what is the meaning of b?

20. abolish taxes, and real taxpayers would find that their disposable incomes have increased. abolish taxes, and public employees would find that their incomes have disappeared.
which one of the following is a logical conclusion that depends on information in both of the statements above?
(a) public offices should be abolished so that disposable incomes will rise.
(b) the only real taxpayers are those who would have more to spend if they did not pay taxes.
(c) public employees are not real taxpayers.
(d) public employees’ incomes should not be taxed since they come from taxes.
(e) if there were no taxes, then public employees could not be paid.
the answer is c. 似乎太过简单?可能不可能一个人既是real taxpayers又是public employees?

nobody

1。房间里没有人彼此认识对方
2。减税后，一个人不可能同时收入增加和减少，只能二者中取一种。

shany

2. 确实简单。狒狒有句话有道理：作逻辑时要降低智商。把握题干即可，不必追究其是否不合情理。

appledandan

thanks, i see