皮皮学，免费搜题
登录
搜题
【多选题】
以下属于曲线拟合方法功能的是( )A.
估算数据
B.
预测趋势
C.
总结规律
D.
证明定理
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【多选题】关于三相异步电动机的工作原理,说法正确的有
A.
必须有转速差；转速差越大，转子电流就越大，电磁转矩也越大。
B.
转子电流的产生、电能从定子到转子的传递都是基于电磁感应现象，因此异步电动机也称为感应电动机。
C.
转子和旋转磁场不同步，故此电动机称为异步电动机。
D.
电机启动时，转差率s很小（≈0.015～0.060）。
【判断题】I. Tell whether the flowing statements are true or false I.one of the objective of quantity purchase discounts and forward buys. 2.B a s i cally warehousing has thee functions: movement ,storage, and ...
A.
正确
B.
错误
【单选题】关于数据，下列说法正确的是:
A.
数据就是数学中的数，包括整数、实数等。
B.
在计算机中数据可以采用二进制、八进制、十六进制存储。
C.
数据可分为数值型、文本型等不同的数据类型，数值型数据采用补码表示，文本型采用字符编码。
D.
同样的数据在内存储器和外存储器中的占用的存储空间大小一定不同。
【简答题】Listen to a passage and fill in the blanks. An (1 ) is a promise to supply goods on the (2 ) stated. It can be a (3 ) which is a promise to sell goods at a stated price, usually within a stated...
【简答题】Questions 3 and 4 are based on the news report you have just heard. 3. A) He works at a national park. B) He is a queen been specialist. C) He removed the Beyond from the boot. D) He drove the bees aw...
【单选题】A) He is a queen been specialist . B) He works at a national park . C) He removed the beyond from the boot . D) He drove the bees away from his car. 4 .
A.
) They were making a lot of noise
B.
) They were looking after the queen
C.
) They were dancing in a unique way
D.
) They were looking for a new box to live in
【单选题】They practice ____________ basketball every afternoon.
A.
playing
B.
play
C.
to play
D.
played
相关题目：
参考解析：
知识点：
题目纠错 0
发布
