The______ of a diploma to students with disabilities has a negative effect on their future educational and occupational attainment.
A. refusal
B. betrayal
C. denial
D. serial
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可引起读码框架的突变是( )
A. 转换
B. 颠换
C. 点突变
D. 缺失终止密码子
E. 插入十二个核苷酸
This portrait of self-destruction is told through the contrast of two singing sisters, one famous and one______.
A. historical
B. responsible
C. notorious
D. illegal
真核生物中tRNA和5SrRNA的转录由下列哪一酶催化( )
A. RNA聚合酶Ⅰ
B. 逆转录酶
C. RNA聚合酶Ⅱ
D. RNA聚合酶全酶
E. RNA聚合酶Ⅲ
由建筑物外引入的配电线路,应在室内靠近进线点便于操作维护的地方装设( )。
A. 空气断路器
B. 负荷开关
C. 隔离电器
D. 剩余电流保护器