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【多选题】
与其他公共政策相比,环境政策的特点有( )。
A.
环境政策的具体性
B.
环境政策的费用有效性
C.
环境政策是适时性
D.
环境政策的多样性
E.
环境政策的可操作性
F.
环境政策的可调整性
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举一反三
【判断题】公交车辆使用的ABS是气压式ABS。
A.
正确
B.
错误
【单选题】在按照汽车ABS的系统控制方案划分,汽车ABS有()。
A.
轴控式ABS、轮控式ABS和混合式ABS
B.
以车轮角减速度为控制的参数的ABS和以车轮滑移率为控制参数的ABS
C.
单通道式ABS和双通道式ABS
D.
四通道式ABS和三通道式ABS
【单选题】Translocations cause some of the most recognized genetic syndromes in human offspring. A translocation can be best described by which one of the following?
A.
They always produce cancer.
B.
They always produce mental retardation.
C.
They have to involve the exchange of an entire chromosome.
D.
They can only occur in the presence of reverse transcriptase.
E.
They can occur in somatic or stem cells.
【单选题】Which of the following is the Robertsonian translocation karyotype in Down syndrome?
A.
47,XX( or XY),+21
B.
45,XX,der(14;21)(q10;q10)
C.
46,XX
D.
46, XY
E.
47,XX(or XY),+18
【判断题】神经元是神经系统的结构和功能单位。
A.
正确
B.
错误
【单选题】( )是神经系统的结构和功能单位。
A.
神经元
B.
树突
C.
轴突
D.
细胞体
【判断题】神经胶质细胞是神经系统的结构和功能单位。
A.
正确
B.
错误
【单选题】Which of the following statements regarding the mechanism of transformation in Bacillus subtilis is false?
A.
A competent bacteria contains a DNA receptor/translocation complex
B.
While translocation of exogenous DNA, both strands gets passage into the cell
C.
While translocation of exogenous DNA, only one strand gets passage into the cell
D.
The exogenous DNA recombines and incorporates itself in the chromosome of the recipient cell.
【单选题】Approximately _____ of the tes produced by an individual heterozygous for a translocation will be nonviable.
A.
all
B.
half
C.
none
D.
a quarter
E.
an eighth
【单选题】The st form of ABS is the ______.
A.
single track ABS
B.
double track ABS
C.
automatic ABS
D.
moblie ABS
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