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【单选题】
同时注药液时,下列说法错误的是:A.
注射应慢~
B.
解除思想顾虑
C.
减轻疼痛
D.
先注射刺激性强的药物
E.
分散注意力
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反馈参考答案：
举一反三
【单选题】public interface A { String DEFAULT_GREETING = “Hello World”； public void method1（）； } A programmer wants to create an interface called B that has A as its parent. Which interface declaration is c...
A.
public interface B extends A {}
B.
public interface B implements A {}
C.
public interface B instanceOf A {}
D.
public interface B inheritsFrom A {}
【单选题】In following description of the interface ,the incorrect one is :
A.
Interface is a reference type
B.
Interface supports multiple inheritance
C.
Methods in an interface have no method body
D.
An interface can inherit variables from other interfaces
【多选题】The communication between the external device and the CPU is through the input / output interface. What are the main reasons for setting the interface?
A.
Interface works as data cache
B.
Interface for information format conversion
C.
The interface reports the operating status of the device and communicates the commands of the computer
D.
Interface accelerates information transmission
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