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【单选题】
核酸对紫外线的最大吸收峰是
A.
220nm
B.
240nm
C.
260nm
D.
280nm
E.
300nm
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参考答案:
举一反三
【简答题】RISC 指令系统的最大特点是:只有 指令和 指令访问存储器, 其余指令的操作均在寄存器之间进行。
【单选题】What level could the man reach after the course?
A.
The man could paint like a master.
B.
The man could paint by himself
C.
The man could paint under the teacher’s guidance.
【单选题】---I don’t know how to write the article assigned by our professor on international trade. You should have ______ your attention on the lecture that ______ how international situation affects exports ...
A.
put; concentrate on
B.
paid; talked about
C.
fixed; dealt on
D.
focused; focused on
【简答题】You are going to hear a report about present economic situation.Pay attention to the percentages. Listen to the passage and take notes on the following items and then complete the following sentences....
【判断题】震、巽、艮、兑依次分别代表风、雷、泽、山
A.
正确
B.
错误
【判断题】角质层是皮肤防御机能的主要承担者。
A.
正确
B.
错误
【简答题】u06v2---习题视频.wmv Task 1: Watch the video and complete the letter below. Pay attention to the structure of the letter. OUR ADVICE NO. MB-5432 TO UVW Exports 88 Prosperity Street East, Suite 707 USA ISS...
【多选题】ComposeSeries[Series[Exp[x],{x,0,10}],Series[Sin[x],{x,0,10}]]的运算结果与哪些语句一样
A.
Series[Exp[x],{x,0,10}]/.x->Series[Sin[x],{x,0,10}]
B.
Series[Exp[x],{x,0,10}]/.x->Sin[x]
C.
Series[Exp[Sin[x]],{x,0,10}]
D.
Series[Sin[Exp[x]],{x,0,10}]
【单选题】方程y"-3y'+2y=exp(x)cos2x的特解形式y=( )
A.
Aexp(x)cos2x
B.
xexp(x)(Acos2x+Bsin2x)
C.
exp(x)(Acos2x+Bsin2x)
D.
x²exp(x)(Acos2x+Bsin2x)
【单选题】According to the passage, which of the following statements is CORRECT about Laos?
A.
The population of Laos is more than that of Thailand.
B.
It used to receive little attention from worldwide.
C.
Its economy mainly relies on exports.
D.
Its growth rate is faster and steadier than any other countries.
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