皮皮学，免费搜题
登录
搜题
【简答题】
若f(x)的一个原函数为arctanx，则下列等式正确的是（ ）
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】His few material possessions make it possible for him to move from place to place with ease.
【简答题】The printers also began to make the books smaller, (so that they could be handled more easily).
【单选题】The news is that China is holding the biggest trade fair in the world.
A.
latest
B.
ultimate
C.
final
D.
last
【简答题】为评价家电行业售后服务的质量,随机抽取了 100 家庭。 服务质量的等级分别表示为: A. 好; B. 较好; C. 一般; D. 差; E. 较差。 调查结果如下: B E C C A D C B A E D A C B C D E C E E A D B C C A E D C B B A C D E A B D D C C B C E D B C C B C D A C B C D E C ...
【简答题】为评价家电行业售后服务的质量,随机抽取了由100个家庭构成的一个样本。服务质量的等级分别表示为:A.很好;B.较好;C.一般;D.较差;E.很差。调查结果如下: B E C C A D C B A E D A C B C D E C E E A D B C C A E D C B B A C D E A B D D C C B C E D B C C B C D A C B C D E C E B...
【简答题】1为评价家电行业售后服务的质量,随机抽取了由100个家庭构成的一个样本。服务质量的等级分别表示为:A很好;B较好;C一般;D较差;E很差。调查结果如下: 习题2.1.sav (1)制作一张频数分布表 (2)绘制一幅条形图,反映评价等级的分布。 (3)绘制一幅饼图,反映评价等级的构成。
【简答题】Work itself is not a single, concept, we work in order to make______.
【单选题】The main idea of the news is that______.
A.
native English speakers numbered
B.
the number of people with English as a second language has overtaken the number who speak it as their native tongue
C.
non-native speakers' difficulties in learning English
D.
the so-called 'Blair Initiative'
相关题目：
【简答题】The printers also began to make the books smaller, (so that they could be handled more easily).