问题 填空题

函数y=1-sinx(x∈R)的单调减区间是______.

答案

由函数y=sinx的性质知,其在区间 [2kπ-

π
2
,2kπ+
π
2
],k∈z上是增函数,

函数y=1-sinx(x∈R)的单调减区间是[2kπ-

π
2
,2kπ+
π
2
],k∈z;

故答案为:[2kπ-

π
2
,2kπ+
π
2
],k∈z

听力题

请根据首字母,中文提示或者上下文, 写出下列句中所缺单词, 使句子意思完整。

小题1:So we've been looking at other possibilities too, such as murder. We will not give up until we find convincing e__________.

小题2:As you can see, my __________(计划、时间表) is full and I cannot manage a trip to London.

小题3:Looking at her _________(迷惑的) expression, I see that she hasn't understand the problem.

小题4:In our school, there are 90 classes a__________.

小题5:It is very necessary for us to think more of others. Only in this way can we build a _________(和谐的) society.

小题6:For the time being(暂时), we cannot move into the house, for it is under c__________.

小题7:When it came to going abroad for further education, she seemed less __________(热情的) about it.

小题8:He has few friends, because nobody can t    his rudeness.

小题9:Our school came into e__________ in 1923. Next year will be its ninetieth birthday.

小题10:The newly-built library will not be opened __________(正式地) until next Tuesday.

小题11:Those who w__________ the traffic accident should go to the police station and tell the police officer what had happened.

小题12:Detective Sam Peterson was asked about the _______(可能性) that Justin was taken by aliens.

小题13:He was __________(攻击) by a Yeti, but luckily he was only slightly injured.

小题14:After her dead body was found in the office, not far away from her home, the police still felt amazed at her __________(无法解释的) death.

小题15:Now that you are a college student, you should learn to be             (独立的)of your parents’ help.

判断题