皮皮学,免费搜题
登录
搜题
【简答题】
Maybe you are more interested in sports than in history. You probably think you will never be a top student. 31 , anyone can become a better student if he or she wants to. If you can use your time well, you may  32 your study without much work. Here’s how: 33 your time carefully. You should make a 34 of things that you have to do. First write down the time for eating, sleeping, dressing, etc. Then decide on a good time for studying. Of course, studying shouldn’t take all of your time. Don’t 35 to leave yourself enough time for hobbies. Find a good place to study. Look around the house 36 a good study place. Keep this space. It may be a desk or just a corner of your room. N0 37 , radio, or television! When you sit down to work, think only about the 38 ! Make good use of your time 39 . Listen carefully to what the teacher says. Careful listening means 40 work after class. You also need to take notes, because it can make it easier for you to learn well. These are only some of the ways to help you with your studying. I believe you’ll find more other ways besides these. 小题1: A.In fact B.For example C.At least D.As usual 小题2: A.affect B.find C.improve D.own 小题3: A.Take B.Make C.Prepare D.Plan 小题4:A. change     B. choice        C list          D. wish 小题5: A.want B.forget C.decide D.hope 小题6: A.with B.in C.at D.for 小题7: A.books B.pens C.games D.tapes 小题8: A.subject B.place C.time D.way 小题9: A.after class B.in class C.at home D.at school 小题10: A.more B.less C.most D.least
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【简答题】已知函数 f(x)=x-a x +lnx (a为常数). (Ⅰ)当a=5时,求f(x)的极值; (Ⅱ)若f(x)在定义域上是增函数,求实数a的取值范围.
【简答题】已知f(x)=x 2 -2ax+5(a>1) (Ⅰ)若f(x)的定义域和值域均为[1,a],求a的值; (Ⅱ)若f(x)在区间(-∞,2]上是减函数,且对任意的x 1 ,x 2 ∈[1,a+1],总有|f(x 1 )-f(x 2 )|≤4,求a的取值范围.
【简答题】设函数f(x)=2x+3的值域是{-1,2,5},则其定义域为______.
【简答题】若函数 f(x)= x+1 x 2 +5ax+4 的定义域为R,则实数a的取值范围是 ______.
【简答题】已知函数f(x)的定义域为[﹣1,5],部分对应值如表: f(x)的导函数y=f'(x)的图象如图所示:则f(x)的单调递增区间是(    ).;f(x)的最大值是(   )
【简答题】某实验基地水库中放养了一批罗非鱼。其监测数据显示,a~e段这种罗非鱼的种群数量发生了明显波动,调查发现有人在该水库中放生了大型肉食性鱼(FNE);一段时间后,罗非鱼种群数量达到了相对稳定状态(见图)。请回答问题: 若想估算该地区某种植物的种群密度,最常用的方法之一是()法,该方法的关键是要做到()。若想预测该地区未来一段时间内某物种的种群数量变化趋势,依据的种群特征是()
【单选题】已知函数f(x)的定义域为[-1,5],部分对应值如下表: x -1 0 4 5 f(x) 1 2 2 1 f(x)的导函数y=f′(x)的图象如图所示. 下列关于函数f(x)的命题: ①函数y=f(x)是周期函数; ②函数f(x)在[0,2]上是减函数; ③如果当x∈[-1,t]时,f(x)的最大值是2,那么t的最大值为4; ④当1 其中真命题的个数是(  )
A.
4         
B.
3        
C.
2       
D.
1
【简答题】已知函数 f ( x )的定义域为[-1,5],部分对应值如下表, f ( x )的导函数 y = f ′( x )的图象如图,下列关于函数 f ( x )的四个命题: x -1 0 4 5 f ( x ) 1 2 2 1 ①函数 y = f ( x )是周期函数; ②函数 f ( x )在[0,2]上是减函数; ③如果当 x ∈[-1, t ]时, f ( x )的最大值是2,那么 t 的最大值...
【单选题】在静水压力作用下,矩形水池池壁可按( )构件计算。
A.
轴向受压
B.
轴向受拉
C.
纯剪切
D.
偏心受拉
【简答题】f(x)=x+5的定义域是__,值域为__。
相关题目: