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【单选题】
统计工作的基本步骤是A.
建立假设、计算t值、确定P值和显著性结果
B.
研究设计、搜集资料、整理资料、分析资料
C.
查阅文献、实施计划与确定分析方案
D.
统计描述、参数估计和假设检验
E.
统计描述、统计推断
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皮皮学刷刷变学霸
举一反三
【单选题】Which of the following does not belong to the crank. connecting rod mechanism?
A.
engine block group
B.
piston and connecting rod group
C.
crankshaft and flywheel group
D.
the exhaust valve
【简答题】除利用混凝土构件钢筋或在混凝土内专设钢材作接闪器外,钢质接闪器应_______。在腐蚀性较强的场所,尚应采取_______或其他防腐措施。
【简答题】What is used for connecting the piston rod and connecting rod?
【单选题】Which of the following sentences is not true about “connecting the dots”?
A.
“Connecting the dots” uses the rhetorical device of “metaphor”.
B.
“Dots” refer to the punctuation mark meaning “period”.
C.
“Connecting the dots” is a puzzle where the person draws lines to connect a sequence of numbered dots to reveal a picture.
D.
“Connecting the dots” means that your current seemingly useless experiences would be of significance when the occasion demands in the future.
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