鉴别腹股沟斜疝与直疝最有价值的是（） A.疝块的形状 B.疝块的位置 C.是否容易发

Habit is any action that we have performed so often that it becomes something that we do almost without thinking. Some of them are thought to be bad habits. People spend countless hours and dollars each year trying to get rid of these bad habits but often fail. Why? Change is hard work and there is no shortcut to achieve it. However, there is still some advice for you to follow.

First, look at why you do it. In other words, what’s the result of doing this thing? If your bad habit is shouting at people when you are unhappy or under pressure, what do you get from it? It may make you feel a little better for the moment. Or maybe you have a bad habit of leaving your homework undone. The result could be that you get more time to spend on the Internet!

Next, take a look on the other hand. What are you losing because of your habit? Shouting at other people is a bad habit because it makes people around you feel bad and unhappy. Leaving your homework undone is a bad habit because you may be punished by your teacher. Having more Internet time means that you are losing the chance to learn the things that you need to learn. When you think that way, you’ll find that it’s not wise to keep your bad habit! Now it is time to make a decision. What will you choose? I’m sure you will choose to do what you think is more important.

小题1:From the first paragraph we know that __________.

A．a habit is a terrible thing that we can never change

B．people take countless hours and dollars to get rid of habits

C．none of the people who try to break bad habits are successful

D．though it is difficult, we can still do something about our bad habits小题2:The underlined sentence “there is no shortcut to achieve it” means that __________.

A．it is not easy to get rid of bad habits

B．there is a long way and a short way

C．something dangerous may happen

D．we must cut it in a short time.小题3:According to the reading, if you want to get rid of your habits, you have to __________.

A．talk to others when you are in low spirits

B．know why you do what you do

C．finish your homework first

D．spend less time on the Internet小题4:Which of the following does NOT happen because of a bad habit according to the reading?

A．You are punished later.

B．Making people around you feel unhappy.

C．You feel a little better after shouting at others.

D．You leave your homework at home by accident.小题5: The main purpose of this passage is to __________.

A．introduce and describe

B．complain and disagree

C．explain and advise

D．discuss and argue

某配送中心A商品分拣作业的标准工资率为3.8元/h，每单位A商品的标准分拣时间为0．1h。该配送中心2012年12月份共分拣A商品20000件，实际耗工时1800h，实际工资总额7200元。试分析该配送中心12月份A商品的实际工资成本差异。

如图所示，放于竖直面内的光滑金属圆环半径为R，质量为m的带孔小球穿于环上，同时有一长为R的细绳一端系于球上，另一端系于圆环最低点。当圆环以角速度绕竖直直径转动时，发现小球受到三个力作用。则角速度可能为（    ）

A．

B．

C．

D．

在多年冻土地区建筑时，下列地基设计方案中哪一种不正确（）

A.使用期间始终保持冻结状态，以冻土为地基 

B.以冻土为地基但按融化后的力学性质及地基承载力设计 

C.先挖除冻土，然后换填不融沉土，以填土为地基 

D.采用桩基础，将桩尖置于始终保持冻结状态的冻土上