皮皮学，免费搜题
登录
搜题
【单选题】
宽带氧传感器又称空燃比传感器、显现氧传感器等,可以反馈的空燃机到达()A.
22:1
B.
12：1
C.
44:1
D.
25:1
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
【单选题】-- There isn't any bread left.--Oh, ______ ? I'll buy some in the supermarket. I'm going there in a few minutes.
A.
is there
B.
isn't it
C.
isn't there
D.
is it
【简答题】计算机病毒的检测技术主要有两种,一种是根据计算机病毒程序中的( ),( ),( )文件长度的变化,在特征分类的基础上建立的病毒检测技术;另一种是( )的自身检测技术。
【单选题】听力原文：M: Hello, it is Carol, isn't it? W: Oh. Mike! Oh, my goodness! I haven't seen you for ages. M: Nice to see you after all these years. What've you been doing? W: Well, I've tried many things after...
A.
Salesman and customer.
B.
Old school friends.
C.
Fellow workers.
【单选题】— Excuse me, sir, smoking in the gas station. — Oh, I'm really sorry.
A.
doesn't allow
B.
isn't allowed
C.
aren't allowed
相关题目：