【单选题】【消耗次数：1】
Air is very important, _________ we cannot live any more.
①
without that
②
no which
③
where
④
without which
参考答案：
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相关题目
【单选题】
He told me how he had given me shelter and protection without which I __________ of hunger.
①
would be died
②
would die
③
would have died
④
will die
【单选题】
We could ask someone to do the work privately without it __________.
①
know
②
be known
③
being known
④
to be known
【单选题】
Without his timely help, we _____ all these in such a short period of time.
①
dont accomplish
②
have not accomplished
③
should not accomplish
④
would not have accomplished
随机题目
【多选题】
相关分析
①
分析对象是相关关系
②
分析方法是配合回归方程
③
分析方法主要是绘制相关图和计算相关系数
④
分析目的是确定自变量和因变量
⑤
分析目的是判断现象之间相关的密切程度，并配合相应的回归方程以便进行推算和预测
【多选题】
建立一元线性回归方程是为了
①
说明变量之间的数量变动关系
②
通过给定自变量数值来估计因变量的可能值
③
确定两个变量间的相关程度
④
、用两个变量相互推算
⑤
用给定的因变量数值推算自变量的可能值