问题
选择题
— Do you enjoy listening to records?
— I find records are often ____ or better than an actual performance.
A．as good as
B．as good
C．as well as
D．good as
答案
答案：A
搜题请搜索小程序“爱下问搜题”
— Do you enjoy listening to records?
— I find records are often ____ or better than an actual performance.
A．as good as
B．as good
C．as well as
D．good as
答案：A
为了证明蜡烛中含有碳、氢元素，某同学设计如下方案，试完成下面的实验报告．
实验目的：证明蜡烛中含有碳、氢元素
实验用品：火柴、盛有蜡烛的贮气瓶、小烧杯、澄清石灰水
| 实验步骤 | 实验现象 | 结论 |
| （1）点燃蜡烛 （2）将光洁干燥的小烧杯 罩在蜡烛燃烧的火焰上方 | 现象______ | 证明含有______元素 |
| （3）______ | 现象______ | 证明含有______元素 |