皮皮学，免费搜题
登录
搜题
【单选题】
火焰传感器具有数字量检测与模拟量检测。火焰传感器的数字量检测是利用红外线对火焰非常敏感的特点，使用特制的红外线接线管来检测火焰，然后把火焰的亮度转化为（）。A.
高低发化的电平信号
B.
不规则的模拟量
C.
规则的模拟量
D.
热量
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】Write the words 根据汉语提示完成下列句子 Nowadays, surfing the Internet for ______ (信息)has become more and more popular. Businessmen can do ______ (电子商务) on the Net. Mr. Smith is my business ________ (合伙人). Hold ...
【单选题】From the passage we can know that______.
A.
American businessmen do things more quickly than Japanese ones
B.
American businessmen like to say 'Yes' and 'No'
C.
Americans usually say what they are thinking
D.
Americans do not express themselves clearly
【单选题】—What did you do yesterday? —I at home and a movie on TV. [ ]
A.
stay ; see
B.
stayed ; saw
C.
stayed ; sees
D.
stay ; saw
【单选题】下面安装驱动程序的正确顺序步骤是()。
A.
显卡→声卡→主板芯片组→显示器
B.
声卡→显卡→主板芯片组→显示器
C.
主板芯片组→显卡→显示器→声卡
D.
显示器→显卡→声卡→主板芯片组
【简答题】What can businessmen do online?
【简答题】Nowadays, getting online for 1 has become popular. 2 the Internet, a world of information is just a click away. A computer user can 3 with the rest of the world. E-mail can send out 4 quickly and safe...
【简答题】A:Hey, Sally! I didn’t see you at the party last weekend. B: 1 A:Why didn’t you come? B: I had lots of things to do. A: 2 B:I cleaned my room and then I went to the library. A: 3 BWell, it...
【单选题】—_______? —I wasn’t out. I just stayed at home.
A.
How was your vacation
B.
Where did you go on vacation
C.
When did you go on vacation
【单选题】按照《建设工程工程量清单计价规范》规定,工程量清单( )。
A.
必须由招标人委托具有相应资质的机构进行编制
B.
不应作为招标文件的组成部分
C.
应采用工料单价计价
D.
由工程量清单说明和工程量清单表两部分组成
相关题目：
【单选题】下面安装驱动程序的正确顺序步骤是()。
A.
显卡→声卡→主板芯片组→显示器
B.
声卡→显卡→主板芯片组→显示器
C.
主板芯片组→显卡→显示器→声卡
D.
显示器→显卡→声卡→主板芯片组