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【单选题】
某溶液的pH约为6,用酸度计测定其精密 pH值时,应选择的两个标准缓冲液的pH是
A.
1.68,4.00
B.
5.00,6.86
C.
4.00,6.86
D.
6.86,9.18
E.
1.68,6.86
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【单选题】我明知道自己有缺点,但不愿意接受别人的建议: ( )
A.
偶然如此.
B.
极少如此
C.
从不如此
【单选题】What is NOT the theme of parables?
A.
Revenge
B.
Lost
C.
Searching
D.
Rejoice
【单选题】下面哪项不是我国社会主义建设的基本依靠力量( )。
A.
工人阶级
B.
农民阶级
C.
知识分子
D.
私营企业主
【单选题】我明知自己有缺点,但不愿接受别人的批评:
A.
偶然如此
B.
极少如此
C.
从不如此
【单选题】Realism is often seen as a reaction against romanticism. What is NOT a typical characteristic of literary romanticism?
A.
R omantic writing is mostly author-centered and subjective .
B.
R omantic writing tends to represent life according to the author’ s imagin ation.
C.
R omantic writing favors the author ’ s expression of emotion or aspiration.
D.
Romantic writers use romantic love as its theme.
【单选题】What is NOT true about the theme of a novel? ___________
A.
It is the main idea of the novel.
B.
It is a message delivered by the author.
C.
It must be stated directly.
D.
It can be stated indirectly.
【单选题】在一元线性回归模型中,若根据样本数据,计算得到经验回归方程: 【图片】,则下列的推测正确的是( )。
A.
可以认为 Y 与 X 有正相关关系
B.
可以认为 Y 与 X 有负相关关系
C.
可以认为 Y 与 X  有非线性相关关系
D.
可以认为 Y 与 X  显著不相关
【单选题】Realism is often seen as a reaction against romanticism. What is NOT a typical characteristic of literary romanticism?
A.
Romantic writing tends to represent life according to the author’s imagination.
B.
Romantic writing is mostly author-centered and subjective.
C.
Romantic writers use romantic love as its theme.
D.
Romantic writing favors the author’s expression of emotion or aspiration.
【单选题】在一元线性回归模型中,对回归系数【图片】进行显著性检验时,下列说法正确的是( )。
A.
只能用 t 检验
B.
只能用 F 检验
C.
既可以用 t 检验,又可以用 F 检验,二者结论完全一样
D.
既可以用 t 检验,又可以用 F 检验,但二者结论并不一样
【简答题】What made you her of having taken the money?
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