对于吊运熔融金属的起重机械主起升机构应有两套驱动系统，应如何设置？

硬脂酸镁用量过多（）

A．黏冲 

B．片重差异超限 

C．裂片 

D．崩解度不合格 

E．均匀度不合格

甲、乙两化工厂分布如图所示，箭头代表水流方向。如果在a处取得水样经检测OH^-、SO₄^2-。在c处取得水样经检测pH=7、且只含有少量NaCl。则b处水中含有的物质应是下列那一组？

 

A．MgSO₄、NaCl    

B．H₂SO₄、Ba(NO₃)₂    

C．BaCl₂、HCl    

D．H₂SO₄、MgCl₂

ABC会计师事务所负责审计甲公司2011年度财务报表，在制定应收账款的审计计划时，注册会计师遇到下列事项，请代为做出正确的专业判断。

A注册会计师对甲公司应收账款实施函证所获回函的下列处理中不恰当的是( )。

A．作为审计证据纳入审计工作底稿管理
B．在甲公司同意后提供给后任注册会计师查阅
C．提供给甲公司作为其向法院主张自己债权的证据
D．在法庭上作为解脱自身职业责任的证据

To learn English well you must learn about yourself. You must discover what your own special needs are in English. You should pick out what makes English different from your own language and concentrate on those parts. And above all, you should pick out your own personal weaknesses in English, pick out your own special problems, find out what mistakes you most often make and   make a list of them.

It will be best if, in your preparation, you can practise doing the various sorts of work you will be asked to do in examination. You should then make a careful note of any mistakes you make more than once. Count up how many times you make each mistake, and the mistake you make most often should be at the top of your list, the next most common in second place, and so on.

For example, if your own language is Japanese, you may find the problem of articles comes at the top of your list. If you speak German, you may find using some of the conjunctions is your biggest problem. If your mother tongue is French, you find you are always having trouble with some of prepositions. And if Italian is your language, you may constantly forget to use a suitable pronoun when you should.

But these are only examples of mistakes typical of certain languages. They may or may not

be your particular personal mistakes. As I say, these personal ones are the most important of all to discover.

小题1:

To learn English well the most important thing is to ______.

A．learn about yourself as much as possible

B．discover your own special needs in the language

C．find out the difference between your own language and English

D．pick out your own personal weaknesses in English小题2:

The writer advises the readers to ______ .

A．spend as much time on English as possible

B．take examinations of various sorts

C．find out their own problems in doing selected exercises

D．keep a notebook with the important languages points in it小题3:

The first item on the list should be the mistake you make ______ .

A．more than once

B．many times

C．most often

D．very often

中国药典规定“熔点”系指

A．固体初熔时的温度

B．固体全熔时的温度

C．供试品在毛细管中收缩时的温度

D．固体熔化时自初熔至全熔时的一段温度

E．供试品在毛细管中开始局部液化时的温度