In order to ensure perfect atomization, the fuel oil （） before injection.

A、A.has to be cooled

B、B.has heated

C、C.has preheated

D、D.has to be preheated

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第1题

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第2题

[] You are creating a Windows Communication Foundation (WCF) service to process orders.The data contract for the order is defined as follows:[DataContract]public class Order{ [DataMember] public string CardHolderName { get; set; } [DataMember] public string CreditCardNumber { get; set; }}You have the following requirements: Enable the transmission of the contents of Order from the clients to the service. Ensure that the contents of CreditCardNumber are not sent across the network in clear text. Ensure that the contents of CreditCardNumber are accessible by the service to process the order.You need to implement the service to meet these requirements. What should you do?（）

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第3题

[单选题] In order to log（）the system you have to type in your password.

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第4题

[单选题] In order to ensure there is proper airflow in a new computer, which of the following should be performed?（）

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第5题

[单选题] You develop a Windows Communication Foundation (WCF) service that interacts with Microsoft Message Queuing (MSMQ). The service requires sessions. You need to create a custom binding that enables messages sent to the queue to be viewed when you are using a listener tool. Which binding elements should you use?（）

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第6题

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