The term secondary stakeholders describes which group of stakeholders（）
A. Stakeholders who conduct transactions with the organisation
B. Stakeholders who have a contractual relationship with the organisation
C. Stakeholders who do not have a contractual relationship with the organisation
D. Stakeholders who conduct transactions with the organisation
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如果在Main.java中撰写以下的程序代码，结果为public class Main {
public static main（String[] args） {
System.out.println（“Hello World”）;
}
}（）如果在Main.java中撰写以下的程序代码，结果为public class Main {
public static main（String[] args） {
System.out.println（“Hello World”）;
}
}（）
A. 执行时显示Hello World
B. 执行时出现NoClassDefFoundError
C. 执行时出现找不到主要方法的错误
D. 编译失败
The rate of migration of a DNA molecule in an electrophoresis depends on which two factors（）
A. conformation （or shape）
B. charge-to-mass ratio
C. temperature
D. viscosity
Choose the correct statement for cosmids（）
A. It can be regarded as almost the same lambda vector
B. Less amount of phage DNA is deleted
Cos packaging sites are left
D. It doesn’t contains a origin of replication
Which of the following statement is true in case of Reverse transcriptase（）
A. Involved in the replication of bacteriophage
B. Uses RNA as a template
C. Used in complementary DNA cloning
D. Synthesizes DNA from RNA
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