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【单选题】
统计工作的前提与基础A.
调查资料
B.
收集资料
C.
整理资料
D.
分析资料
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反馈参考答案：
举一反三
【单选题】I would have come earlier, but I _____ that you were waiting for me. [ ]
A.
didn't know
B.
hadn't known
C.
would have known
D.
haven't known
【单选题】I would have come earlier, but I ________ that you were waiting for me.
A.
didn’t know
B.
hadn’t know
C.
would have known
D.
haven’t known
【单选题】在市场经济条件下，出现了许多适应环境的新型组织结构，其中能最方便的将市场竞争机制引入企业内部管理的组织结构是（）
A.
直线职能制
B.
事业部制
C.
矩阵制
D.
网络型组织结构
【单选题】在斜率鉴频器和高频小信号谐振放大器电路中均有并联谐振回路，二者不同之处是()。
A.
斜率鉴频器中的并联谐振回路工作在谐振状态，而高频小信号谐振放大器中的谐振回路工作于失谐状态
B.
斜率鉴频器中的并联谐振回路工作在失谐状态，而高频小信号谐振放大器中的谐振回路工作于谐振状态
C.
斜率鉴频器利用谐振回路实现选频
D.
以上皆不对
【单选题】I would have come earlier, but I _____ that you were waiting for me.
A.
didn’t know
B.
hadn’t known
C.
haven’t known
D.
wouldn’t have known
【单选题】Such a good opportunity may not come again, so you ____________ let it go this time.
A.
hadn’t better
B.
wouldn’t better
C.
would better not
D.
had better not
【单选题】Hello! I thought you _____ to this concert tonight. [ ]
A.
hadn't come
B.
won't come
C.
weren't coming
D.
haven't come
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