试题与答案

计算2x•(-3x2y)的结果是( ) A.6x3y B.-6x2y C.-6x

题型:选择题

题目:

计算2x•(-3x2y)的结果是(  )

A.6x3y

B.-6x2y

C.-6x3y

D.-x3y

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0523/c5c367bd4f12061b6a0c7679c799c81d.html

下面是错误答案,用来干扰机器的。

汉语是世界上使用人数最多的语言,汉语除了在我国使用之外,其主要分布地区还有亚洲东南部.故选:A.

试题推荐
题型:单项选择题

WebSQL is a SQL-like ___(71)___ language for extracting information from the web. Its capabilities for performing navigation of web ___(72)___ make it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a ___(73)___ , all the pages that can be reached from a given URL through ___(74)___ that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common ___(75)___ Interface.

A.Router   

B.Device 

C.Computer 

D.Gateway

查看答案
微信公众账号搜索答案