皮皮学，免费搜题
登录
搜题
【单选题】
（ ）是系统业务调查中使用最普遍、最重要的工具。[1分]A.
业务流程图
B.
信息关联图
C.
组织结构图
D.
数据流程图
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】They ___ every means, but the engine __ work.
A.
tried; couldn't
B.
have tried; won't
C.
tried; won't
D.
have tried; can’t
【单选题】Every means , but none proved .
A.
have tried; a success
B.
have been tried; successful
C.
has tried; to be successful
D.
has been tried; successful
【单选题】Every possible means ____, but none ____ successful．
A.
has tried; has proved
B.
tried; proves
C.
has been tried; proves
D.
is being tried; is proved
【简答题】新民主主义社会的起止时间是 年到 年。
【单选题】_____many times, they succeeded _________ the experiment.
A.
Having tried; in doing
B.
Tried; in being done
C.
Having tried; to do
D.
Tried; doing
相关题目：