问两个base 必考机经的变形70题目

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有两个题目看各位说几乎肯定要考，有不明白的

1.

44（有semicolon了）



这个如果有semicolon 选什么呢？我觉得是a?

44.The following SAS program is submitted:

  data ONE TWOSASUSER.TWO

     setSASUSER.ONE;

  run;

Assuming that SASUSER.ONE exists, how many temporary andpermanent SAS data sets are created?

     A. 2 temporaryand 1 permanent SAS data sets are created

     B. 3 temporaryand 2 permanent SAS data sets are created

     C. 2 temporaryand 2 permanent SAS data sets are created

     D. there is anerror and no new data sets are created

Answer: D

35.given the SAS data set SASDATA.TWO:

  X  Y

  -- --

  5  2

  3  1

  5  6

The following SAS program is submitted:

  dataSASUSER.ONE  SASUSER.TWO  OTHER;

     setSASDATA.TWO;

     if Xeq 5 then output SASUSER.ONE;

     if Ylt 5 then output SASUSER.TWO;

    output;

  run;

What is the result?

     A.

data setSASUSER.ONE has 5 observations   

data set SASUSER.TWO has 5 observations

data set WORK.OTHER has 3 observations

     B.

data setSASUSER.ONE has 2 observations   

data set SASUSER.TWO has 2 observations

data set WORK.OTHER has 1 observations

     C.

data setSASUSER.ONE has 2 observations   

data set SASUSER.TWO has 2 observations

data set WORK.OTHER has 5 observations

     D. No datasets are output. The DATA step fails execution due to syntax errors.

Answer: A

机经说变成了else output,不明白也，哪里变了选什么呀

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关键词：Base observations observation TEMPORARY Permanent following permanent created 变形

不懂帮顶，顺便问问楼主哪里下的机经，能否给个链接，多谢

第一个 是逻辑库超过8个字符 所以报错 没有观测
第二个程序是 满足 if X eq 5 then output SASUSER.ONE 有两条观测,但是判断完之后又存在一个output,所以最后观测就是 满足条件的加上 set 后面的表的所有观测

第一个选a
第二个 应该是 3 3 1 （我用软件跑的）

第二个应该是else output other；
所以是2 2 1