皮皮学，免费搜题
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【单选题】
脚气病性心脏病是由于体内缺乏A.
维生素A
B.
维生素C
C.
维生素B₁
D.
生物素
E.
叶酸
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举一反三
【单选题】The question _____ at tomorrow’s meeting is of great importance.
A.
to discuss
B.
being discussed
C.
to be discussed
D.
discussed
【单选题】The school's development committee has deliberated the question ______ great length.
A.
on
B.
along
C.
at
D.
for
【简答题】A great deal of research has been performed on this question, and results points to the following answer: we perform this task through a special type of averaging.
【多选题】以下哪一种属于信息隐藏?
A.
在一个录音带的某些位置上加一些不易察觉的回声
B.
由信鸽携带便条传送消息
C.
利用字的标准体和斜体来进行编码。
D.
制作特殊的雕塑或绘画作品，使得从不同角度看会显出不同的印像
【单选题】The great question that this paper will, but feebly, attempt to answer is, What is the creative process? Though much theory has accumulated, little is really known about the power that lies at tile bo...
A.
Well
B.
Vision
C.
Form
D.
Will
【单选题】The question ______ last night was of great importance.
A.
discussed
B.
discussing
C.
to be discussed
D.
discuss
【单选题】A great number of students _____ said they were forced to practise the piano. [ ]
A.
to question
B.
to be questioned
C.
questioned
D.
questioning
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