下列不同色温光源中，（）适用于白天需补充自然光的房间。A、2800K B、3200K

人民币是我国的法定货币。人民币的流通，是我国国民经济、人民生活赖以维持和发展的血脉。

（1）我们手中的人民币为什么能购买自己需要的商品？

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（2）人民币作用这么大，国家能否通过多印发人民币来提高人民的生活水平？

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能将程序补充完整的选项是______。
class Person
private int a；
phblic int change(int m)return m；

public class Teacher extends Person
public int b；
public static void main(String arg[ ])
Person p=new Person( )；
Teacher t=new Teacher( )；
int i;
______；

A．i=m

B．i=b

C．i=p.a

D．i=p.change(50)

下列不属于心理障碍范围的是（）

A.焦虑

B.抑郁

C.强迫症

D.失眠

Electronic mail, or mail, as it is known to its many fans, has been around for over two decades. Typically, email systems support five basic functions, as described below. (41) refers to the process of creating messages and answers. (42) refers to moving messages from the originator to the recipient. (43) has to do with telling the originator what happened to the message. Was it rejected Was it lost (44) incoming message is needed. So people can read their email. (45) is the final step and concerns what the recipient does with the message after receiving it.

（45）是（）

A.Composition

B.Terminating

C.Reporting

D.Displaying

知觉是人脑对客观事物（）

A.个别属性的反映

B.整体属性的反映

C.本质属性的反映

D.特殊属性的反映

E.发展属性的反映