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【简答题】
CPU处理数据的速度远远高于打印机的打印速度,为了解决这一矛盾,可采用()。
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举一反三
【单选题】Becasuse of a long drought, the farmer was ______ about the prospect of a good yield.
A.
alarmed
B.
uncertain
C.
unlikely
D.
suspended
【判断题】在乙醇与乙酸的酯化反应中,浓硫酸的作用既是催化剂又是吸水剂( )。
A.
正确
B.
错误
【单选题】If the Europeans thought a drought—a long period of dry weather—was something that happened only in Africa, they know better now. After four years of below-normal rainfall (in some cases only 10 perce...
A.
They know more about the causes of the drought.
B.
They have a better understanding of the drought in Africa.
C.
They have realized that the drought in Europe is the most serious one.
D.
They have realized that droughts hit not only Africa but also Europe.
【单选题】The long drought was followed by months of____.
A.
famine
B.
tame
C.
fancy
D.
fatigue
【简答题】编辑完文档,如果要退出 Word ,最简单的方法是( )击标题栏上的 Word 图标。
【判断题】乙酸乙酯的制备实验在酯化反应过程中,浓硫酸起的作用是( )A催化剂 B脱水剂C 调节反应体系PH D催化剂和脱水剂A. 错B. 错C. 错D. 对
A.
正确
B.
错误
【单选题】After a long drought, heavy rain is expected______most of the area for the rest of the week.
A.
on
B.
above
C.
between
D.
throughout
【简答题】编辑完文档,如果要退出word,最简单的方法是( )击标题栏上的word图标。
【单选题】在酯化反应过程中,浓硫酸起的作用是( )
A.
催化剂
B.
脱水剂
C.
调节反应体系PH
D.
催化剂和脱水剂
【单选题】The long absence of rain _______ leads to a serious drought in the southwest of China, which draws the concerns of the whole country.
A.
immediately
B.
accidentally
C.
gradually
D.
undoubtedly
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