皮皮学，免费搜题
登录
搜题
【多选题】
典型的产品生命周期一般可分为四个阶段,即( )。A.
介绍期（投入期）
B.
．成长期
C.
成熟期
D.
衰退期
E.
恢复期
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】链传动中由于有多边性效应存在 ,因此不能保持恒定的( )传动化。
【单选题】The doctor told him that he should take this medicine one pill at one time.
A.
told
B.
should take
C.
one
D.
one
【单选题】You should read the article as ____ as I do to know what the writer really wants to tell us.
A.
careful
B.
more careful
C.
carefully
D.
more carefully
【单选题】What point does the author want to make with this passage?
A.
Women should drive more carefully.
B.
Women shouldn't be drivers.
C.
Men are better drivers than women.
D.
Men should be more tolerant of women drivers.
【简答题】A．That one should think about the ideas while reading the words. B．That one should read only the title and important words. C．That one should always take notes. D．That one should read sequences of wor...
相关题目：