4. ----Who ____ it be that hasn’t handed in his composition?
----It ____ be Robinson. He ____ it in yesterday.
A. can, will, should hand B. can, must, should have handed
C. may, may, can’t have handed D. will, can, could have handed
3. Only ticket holders will be ____ the stadium.
A. admitted into B. allowed in C. admitted entering D. allowed entering
2. I found her nice and honest ____ I saw her.
A. for the first time B. the first time C. on the first time D. at first
1. He came here by ____way of London. In ____ way his health is much improved, but he is still not really well.
A. a, a B. /, a C. the, the D. a, the
17.已求函数
的单调区间.
16.如图,A,B,C为函数
的图象
上的三点,它们的横坐标分别是t, t+2,
t+4(t
1).
(1)设
ABC的面积为S 求S=f (t) ;
(2)判断函数S=f (t)的单调性;
(3) 求S=f (t)的最大值.
15.现有某种细胞100个,其中有占总数
的细胞每小时分裂一次,即由1个细胞分裂成2个细胞,按这种规律发展下去,经过多少小时,细胞总数可以超过
个?(参考数据:
).
14.设函数
.
(1)确定函数f (x)的定义域;
(2)判断函数f (x)的奇偶性;
(3)证明函数f (x)在其定义域上是单调增函数;
(4)求函数f(x)的反函数.
13.已知函数
.
(1)求函数f (x)的定义域;(2)求函数f (x)的值域.
12.函数y=
的单调递增区间是
.
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com