皮皮学，免费搜题
登录
搜题
【单选题】
欲对某社区居民的健康状况进行调查研究，计划按居民的门牌号每隔5户抽1户，然后在选中的这户随机选择1名居民作为调查对象，这种选择方法为（）A.
单纯随机抽样+分层抽样
B.
系统抽样+单纯随机抽样
C.
系统抽样+整体抽样
D.
整群抽样+系统抽样
E.
分层抽样+整群抽样
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】My car is covered with thick snow and now the engine simply ______ start.
A.
can’t
B.
mustn’t
C.
won’t
D.
shan’t
【单选题】What is the maximum number of layers of decompression that juniper-express-engine (express AV) can decompress for the HTTP protocol?（）
A.
0
B.
1
C.
4
D.
8
【判断题】At the conclusion of the internal analysis, firms must identify their strengths and weaknesses in resources, capabilities, and core competencies.
A.
正确
B.
错误
【单选题】_____ his arrival at the village of the crows, he found his at the point of death.
A.
Upon
B.
Above
C.
Beyond
D.
Within
【简答题】I ______________ his arrival at four o'clock. (预计)
【简答题】数据独立性分为逻辑独立性与物理独立性。当数据的存储结构改变时，其逻辑结构可以不变，因此，基于逻辑结构的应用程序不必修改 ， 称为 【 5 】 。
【判断题】SWOT analysis is a planning exercise in which managers identify external environmental strengths and weaknesses.
A.
正确
B.
错误
【单选题】He ____ a boy informing his mother of his secure arrival.
A.
asked
B.
delieved
C.
sent
D.
appointed
【简答题】SAP假时，（）真假不定A. 并非SAPB. SEPC. SIPD. SOP
相关题目：
参考解析：
知识点：
题目纠错 0
发布
