伯利克里
FOB、CFR和CIF三种常用的贸易术语都是象征性交货。
能降低酶催化反应速度的因素是（） ["失活作用","抑制作用","去激活作用","阻遏作用","竞争作用"]
饲料缓冲度
You are developing a Windows Communication Foundation (WCF) service that is hosted by a Windows Forms Application.The ServiceHost instance is created in the Form Constructor.You need to ensure that the service is not blocked while the UI thread is busy. What should you do?（） [" Decorate the service implementation class with the following line of code [ServiceBehavior(UseSyncronizationContext = false)]"," Decorate the service implementation class with the following line of code [ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple)]"," Call the Invoke method of the form and supply a delegate."," Call the BeginInvoke method of the form and supply a delegate."]
如何正确使用钢板尺？
