题目内容

正常成人每日需要的钾盐量为()。

A. 1~1.5g
B. 2~3g
C. 3.5~4g
D. 5~6g
E. 7~8g

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原料气为什么要进行脱除硫化物?

病情随体质而发生的转化称为()。

A. 质势
B. 病势
C. 从化
D. 易感性
E. 传变

You develop a Windows Communication Foundation (WCF) service to generate reports. Client applications call the service to initiate report generation but do not wait for the reports to be generated. The service does not provide any status to the client applications. The service class is defined as follows. (Line numbers are included for reference only.) 01 [ServiceContract] 02 public class ReportGeneratorService 03 { 04 ... 05 private int GenerateReports(int clientID) 06 { 07 ... 08 return 0; 09 } 10 } You need to ensure that client applications can initiate reports without waiting for status. Which two actions should you perform (Each correct answer presents part of the solution. Choose two.) ()。

A. Insert the following code at line 04. [OperationContract(IsOneWay=true)]
B. Insert the following code at line 04. [OperationContract(AsyncPattern=false)]
C. At line 05, change the GenerateReports method from private to public.
D. Remove line 08. At line 05, change the return type of GenerateReports method to void.

关于密码子的描述正确的是()。

A. 多种氨基酸都有两个以上的密码子
B. 密码子中可以有稀有碱基
C. 每个密码子都对应一种氨基酸
D. 密码子中任何碱基的突变都会影响氨基酸的翻译
E. 不同生物的密码子是不同的

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