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【单选题】
新疆 60 多年的辉煌成就离不开充分发挥民族区域自治制度优势。民族区域自治制度的优势包括 ( ) 1 国家的集中统一领导与民族区域自治有机结合,增强了中华民族的凝聚力 2 民族自治地方享有高度的自治权 3 保证民族自治地方充分享有自治权,有利于保障少数民族人民当家作主 4 有利于发展平等团结互助和谐的社会主义民族关系A.
①②③
B.
①②④
C.
②③④
D.
①③④
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举一反三
【简答题】试述数据模型的三要素
【简答题】Watch lecture 1 and answer the questions. 2. How do the cells repair themselves after the DNA damage? Cells could __________ the DNA damage, and ___________ the damaged part and re-synthesis to repair...
【判断题】Different denatured DNA molecules can be combined into double-stranded renaturation after slow cooling.
A.
正确
B.
错误
【单选题】After infection of a cell by the HIV vires, a DNA copy of the viral genome may be inserted in the host chromosome This is an example of:
A.
viral recombination
B.
disparate recombination
C.
homologous recombination
D.
nonhomologous-recombination
【多选题】电解加工可用在孔的加工和复杂成形模具零件中，如：
A.
汽车、拖拉机连杆等型腔锻模
B.
发动机、汽轮机转子的扭曲叶片
C.
齿轮内孔的倒圆、扩孔、抛光
D.
发动机缸体、缸盖、支架等
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
Husband and wife.
B.
Father and daughter.
C.
Doctor and patient.
D.
Teacher and student.
【判断题】After DNA replication, bacterial genomes must undergo decatenation before the cell can divide.
A.
正确
B.
错误
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