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【简答题】
十九大报告指出,自觉抵制 对党内生活的侵蚀,营造风清气正的良好政治生态。
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举一反三
【单选题】After formation of replication fork
A.
Both the new strands are synthesized discontinuously
B.
One strand is synthesized continuously and the other discontinuously
C.
Both the new strands are synthesized continuously
D.
RNA primer is required only for the synthesis of one new strand
【简答题】已知PⅢ CPU主频为1G，则该CPU时钟周期为（）ns。
【单选题】In the process of meiosis,DNA replication of each chromosome occurs,form ing a structure consisting of two sister chromatids attached to a single centromere.What is this structure?
A.
A duplicated chromosome
B.
Two chromosomes
C.
A synapsed chromosome
D.
A crossover chromosome
【单选题】已知某计算机 CPU 的外频为 133MHz ,其主板上倍频跳线在 6 的位置上,则该计算机的主频为()
A.
800MHz
B.
700MHz
C.
900MHz
D.
600MHz
【单选题】Which are features of nuclear division by mitosis? 1. forms cells of equal size to the parent cell 2. forms genetically identical cells 3. semi-conservative replication of DNA
A.
1 and 2 only
B.
2 and 3 only
C.
2 only
D.
1, 2 and 3
【简答题】听录音，选择正确的图片，将其序号填入题前括号里。 ( ) 1. What day is it today? ( ) 2. What's your favourite food? ( ) 3. What do you do on Sundays? ( ) 4. What's your English teacher like? ( ) 5. What woul...
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