资源税纳税义务人开采或者生产不同税目应税矿产品的，应当分别核算不同税目应税矿产品的课

一般测试表明：当风量为1 000m3/h时，一般折叠型泡沫塑料过滤器的容尘量为( )g。

A．200～400
B．250～300
C．200～300
D．300～450

在关系数据库中，用来表示实体之间联系的是【 】。

阅读理解

     My students often tell me that they don't have "enough time" to do all their schoolwork.

     My reply is often a brief "You have as much time as the president." I usually carry on a bit about there

being twentyfour hours in the day for everyone, and suggest that "not enough time" is not an acceptable

explanation of not getting something done.

     Once in graduate school, I tried to prove to one of my professors by saying that I was working hard.

His answer to me was,"That's irrelevant (无关的)．What's important is the quality of your work." Since

then I have had time to think carefully about the "hard worker" dodge(决窍), and I have come to some

conclusions-all relevant to the problem of how much time we have.

     If you analyze the matter, you can identify two parts of the problem: There is, of course, the matter of

"time", which we can think of as fixed.Then there is the problem of "work" during that time.But, as my

professor suggested, it's not how hard one works but the quality of the product that's important.

     That led me to a new idea: the quality of the work.That concept is perhaps best explained by a sign I

once saw on the wall in someone's office:"Don't work harder.Work smarter." There is a lot of sense in that idea.

     If you can't get more time, and few of us can, the only solution is to improve the quality of the work.

That means thinking of ways to get more out of the same time than we might otherwise get.That should

lead us to an analysis of our work habits.Since "work" for students usually means "homework", the

expression "work habits" should be read as "study habits"．

     Then,as a smart student, you will seek to improve those skills that you use in study, chiefly reading and writing.If you learn to read better and write better, there are big benefits that pay off in all your studies.

1. From the passage, we know that the author is probably ________.                        

A. a poet                                                                                

B. an educator                                                                            

C. a novelist                                                                            

D. an engineer                                                                            

2. We can infer from the 2nd paragraph that we students still ________.                  

A. have enough time                                                                      

B. can meet the president                                                                

C. get everything done well                                                              

D. should accept the explanation                                                          

3. Which of the following is TRUE according to the passage?                              

A. The author's students make good use of their time to do all their homework.            

B. The author tried to tell the professor that he/she (the author) had done a good job.  

C. You can't improve the quality of the work if you can't get more time.                  

D. You'll try to improve your skills in reading and writing if you're a clever student.  

4. What's the passage mainly about?                                                      

A. Students don't have enough time.                                                      

B. Don't work harder; work smarter.                                                      

C. No one can get more time.                                                              

D. Read better and write better.                                                          

编码刺激的空间关系和特性的皮层视觉系统分别称作（）系统和（）系统。

纳税人提出调整定额必须是经营收入变化超过（）。

A.10%-30%

B.30%-40%

C.10%-20%

D.20%-30%