[填空题] 自南唐（）巳开始，词作由偏重描写转向偏重抒情。

重复言语 安全生产教育主要内容有哪些？ 对社会人假设的评价 You work as an application developer at Certkiller .com. Certkiller .com wants you to develop an application that stores and retrieves client information by means of a unique account number.You create a custom collection class， which implements the IDictionary interface，named ClientDictionary. The following code have been included into the new application. //Create Client objects Client c1 = new Client （"AReid"， "Andy Reid"， Status.Current）； Client c2 = new Client （"DAustin"， "Dean Austin"， Status.New）； //Create ClientDictionary object IDictionary cData = new ClientDictionary （）； cData.Add （"10001"， c1）； cData.Add （"10002"， c2）； You use the same method to add other Client objects to the collection. You need to ensure that you are able to retrieve client information associated with the account number 10111.What should you do？（） [" Use the following code： Client foundClient；foundClient = （Client） cData.Find （"10111"）； "," Use the following code： Client foundClient；if （cData.Contains （"10111"）） foundClient = cData ["10111"]； "," Use the following code： Client foundClient；if （cData.Contains （"10111"））foundClient =（Client） cData ["10111"]； "," Use the following code： Client foundClient；foreach （string key in cData.Keys {if （key == "10111"）foundClient = （Client） cData.Values ["10111"]； }"] 青少年犯罪的比较公认特点包括随意性、纠合性和（） ["变态性","虚荣性","传染性","可塑性"] 自南唐（）巳开始，词作由偏重描写转向偏重抒情。