磨石工程应防止（）中毒。使用磨石机应戴绝缘手套，穿胶靴。 A.甲酸 B.乙酸 C.草

2009年我国民政事业费总支出2181.9亿元，占国家财政支出比重由2008年的3.4%下降到2.9%。其中，中央财政共向各地转移支付民政事业费1227.0亿元，占民政事业费比重56.2%，比上年增长了1.2个百分点。

2002～2006年间，中央转移支付年增长额最大的年份是( )。

A．2002年
B．2003年
C．2005年
D．2006年

下列关于公共关系作用的表述中，错误的是( )。

A．有利于建立和维持一个组织与其公众之间的相互沟通、理解、接受和合作
B．强调和认定以机构利益为核心的经营管理责任
C．有利于对公众舆论不断了解并及时作出反应
D．有助于使经营管理活动有效地适应各种变化

阅读理解

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项。

     Being organized is an important skill for school and life.  When you're well organized, you can stay

focused, instead of spending time hunting things down.    1   For schoolwork, it means having one

notebook or place where you store all your assignments, so you know what you have to do and when.

  Keeping labeled folders(贴有标签的文件夹) for handouts(课堂讲义)and keeping all your

schoolwork neat and in a specific place-these are the main parts of organization.  

     For home stuff, being organized means having a place to put your things and putting them back as you

go.    2   It means keeping your schoolbag, your shoes, and your clean underwear in the same places so

you always know where to find them.  

     Planning is part of being organized, too.    3   Calendars, lists, and schedules can help you plan.  You

can buy or draw a calendar and keep it near your workplace.  Making a schedule or "to-do" list for

yourself is a good idea.  Looking at your list helps you keep track of what you need to do.    4  Check

off things when you've done them.  Use your list to help you decide which thing is most important to

work on first.  

       5  But once you're organized, it feels great.  The less time you spend hunting around for things or

panicking about homework, the more time you have for better things, like reading a good book or

playing.  

A.  Add new things as you get assignments.  

B.  First, you should get your schoolwork organized.  

C.  It means hanging your coat up instead of dropping it on the floor or throwing it on a chair

D.  It takes some extra efforts to organize yourself and your stuff.  

E.  Planning means deciding what you will do and when you will do it.  

F.  You will benefit a lot from a good habit.  

G.  What does it mean to be organized?

如何确定种子是否成熟？

下表是四种人类遗传病的亲本组合及优生指导，不正确的是（）

A.A

B.B

C.C

D.D