【单选题】充足电状态下,蓄电池正极板上的活性物质是(),负极板上的活性物质为()。
【单选题】2015年10月,甲公司销售商品实际应交增值税20万元,应交消费税30万元,应交纳城建税3.5万元。假定不考虑其他因素,甲公司当月应列入利润表“税金及附加”项目的金额是()万元。
【单选题】echo "hello"; The PHP script above contains a word hello, the word is called_____ by programmers
【简答题】大家执行一下,这两个echo语句有什么区别? skill="Java" echo "I am good at ${skill}Script" echo "I am good at $skillScript"
【单选题】Given the following script, why does the output come out as an empty line instead of "dog"()#!/bin/ksh $VAR=dog echo "${VAR}"
A.
The $VAR variable was not exported.
B.
The $VAR should have been set as VAR.
C.
dog needs double quotes around it when setting $VAR.
D.
The { } should not be around VAR in the echo command.
【判断题】充足电状态下,蓄电池正极板上的活性物质是青灰色海绵状纯铅 。
【简答题】分析以下代码是否存在XSS问题,如果存在如何解决。var text = '';