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【单选题】
利用 结点电压法计算图示电路中 b 点的电位为( ) V 。A.
1
B.
-1
C.
0.4
D.
-0.4
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反馈参考答案：
举一反三
【多选题】蛋白质生物合成中的搬运工具tRNA,描述正确的是( )
A.
每一种氨基酸可以有多种tRNA负责搬运
B.
tRNA分子上有核糖体识别位点
C.
tRNA分子上有氨基酰-tRN合成酶识别位点
D.
氨基酸臂CCA-OH为氨基酸结合位点
E.
反密码子环与mRNA上的密码子相互配对，决定搬运氨基酸的种类
【简答题】•# 030901 Find
at least three common
expressions for stating the purpose of
the presentation
【单选题】100 The most common method for pricing out non-burdened labor hours for a three year project would be to:
A.
Price out the hours at the actual salary of the people to be assigned.
B.
Price out the work using a company-wide average labor rate.
C.
Price out the work using a functional group average labor rate.
D.
All of the above.
E.
A and B only
【单选题】182 The most common method for pricing out non-burdened labor hours for a three year project would be to:
A.
Price out the hours at the actual salary of the people to be assigned.
B.
Price out the work using a company-wide average labor rate.
C.
Price out the work using a functional group average labor rate.
D.
All of the above.
E.
A and B only
【单选题】关于蛋白质生物合成的叙述，正确的是（ ）
A.
一种tRNA可以携带多种氨基酸
B.
DNA聚合酶是在细胞核中合成的
C.
反密码子是位于mRNA上相邻的三个碱基
D.
线粒体中的DNA能控制某些蛋白质的合成
【简答题】Her early albums ...
【单选题】The three common insurances in the construction industry do not include .
A.
Insurance of Works (CAR)
B.
Car Insurance
C.
Public/Third party liability insurance
D.
Insurance for Contractor’s Personnel/Workmen Compensation Insurance
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