皮皮学，免费搜题
登录
搜题
【单选题】
影响柴油机燃烧过程的主要因素有压缩比、柴油的质量、( )、喷油规律、转速和负荷、燃烧室结构等。A.
喷油提前角
B.
点火提前角
C.
气门
D.
曲轴转角
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】Listen to the following dialogue on online shopping. Q: Has the woman experienced difficulty by shopping online?
A.
She has never shopped online.
B.
She has paid no attention to the known risk of online shopping.
C.
Yes, she has.
D.
No, because she would no longer shop online.
【单选题】What does Angela think of online shopping?
A.
Online shopping means cheap for her.
B.
Online shopping means convenience for her.
C.
Online shopping means expensive for her.
D.
Online shopping means inconvenience for her.
【多选题】The disadvantages of shopping online include ( ).
A.
Consumers may get fake products or poor quality products online.
B.
Consumers may get cheated by illegal sellers online.
C.
Consumers’ personal information may be stolen.
D.
Consumers may get addicted to shopping online.
【简答题】I would prefer shopping online to shopping in a department store because________________________（它更加方便和省时）.
相关题目：