（1）计算：(-2)0-(13)-1-|-3|+2sin60°；（2）先化简，再

为什么发现子宫内膜不典型增生应考虑行子宫切除术？

For some time past,it has been widely accepted that babies—and other creatures—learn to do things because certain acts lead to “rewards(报酬)”,and there is no reason to doubt that this is true. But it used also to be widely believed that effective rewards, at least in the early time, had to be directly connected to such basic physiological(生理的) “drives” as thirst or hunger. In other words, a baby would learn if he got food or drink or some sort of physical comfort, not otherwise.

It is now clear that this is not so. Babies will learn to behave in ways that produce results in the world with no reward except success in sight.

Papousek began his studies by using milk in the normal way to “reward” the babies and to teach them to carry out some simple movements, such as turning the head to one side or the other.Then he noticed that a baby who had  had enough to drink would refuse the milk but would still go on making the learned response(回答) with clear signs of pleasure. So he began to study the children's responses in situations where no milk was provided. He quickly found that children as young as four months would learn to turn their heads to right or left if the movement “turned on” some lights—and indeed that they were able to learn some more turns to bring about(产生) this result,for example,two left or two right,or even to make as many as three turns to one side.

Papousek's light experiment was placed directly in front of the babies and he made the interesting observation that sometimes they would not turn back to watch the light closely although they would “smile and speak” when the light was on.Papousek concluded that it was not the sight of the lights which pleased them.It was the success they were achieving in solving the problem,in mastering the skill,and then there is a basic human nature to make sense of the world and bring it under control.

小题1:According to the writer,babies learn to do things which _______.

A．will satisfy their surprise

B．will meet their physical needs

C．are directly connected to pleasure

D．will bring them a feeling of success小题2:Papousek noticed in his studies that a baby _______.

A．would make learned responses when it saw the milk 

B．would continue the simple movements without being given milk 

C．would turn its head to right or left when it had enough to drink

D．would carry out learned movements when it had enough to drink 小题3:In Papousek's experiment babies make learned movements of the head in order to _______.

A．be praised

B．please their parents

C．be rewarded with milk

D．have the lights turned on 小题4:The babies would “smile and speak” at the lights because _______.

A．they succeeded in “turning on” the lights

B．the sight of lights was interesting

C．they need not turn back to watch the lights

D．the lights were directly connected to some basic “drives”

有如下事件过程，当同时按下转换键Shift和功能键F5时其最后输出的信息是（ ）。　　Const ShiftKey=1　　Const CtrlKey=2　　Const Key_F5=&H74　　Const Key_F6=&H75　　Private Sub Text1_KeyDown(KeyCode As Integer，Shift As Integer)　　　　If KeyCode=Key_F5 And Shift=ShiftKey Then　　　　　　Print"Press Shift+F5"　　　　ElseIf KeyCode=Key_F6 And Shift=CtrlKey Then　　　　　　Print"Press Ctrl+F6"　　　　End If　　End Sub

A．J2EE

B．J2ME

C．J2SE

D．J2DE

网络管理员使用DHCP服务器对公司内部主机的IP地址进行管理。在DHCP客户机上执行“ipconfig/all”得到的部分信息如图1所示，该客户机在进行地址续约时捕获的其中1条报文及相关分析如图2所示。请分析图中的信息，补全图2中横线处的内容。

图1

图2

TMIS机构属性分（）。

A.单设一机一库

B.单设一机多库

C.合设一机一库

D.合设一机多库