今天早上通过SAS BASE ，贴上来希望对后来的同学有利，也为自己攒点人品
很多70题上面的，我能记住的都写出来, 64题，全部选择题，也没有填空
1(选项变了）, 3, 4, 5, 7, 10, 11, 12 (JAN, FEB, MAR变成其他的，题目意思没变),  14,  15, 17, 18(变了), 19, 20 , 21,
23(sasdatafolder),  24,  25, 26, 27,  28, 30, 31, 33, 34, 35, 36, 40, 42, 45, 46, 47, 49, 50, 51, 52, 53, 54, 56, 59,  60, 61 (变形),
63, 65, 67, 69, 70(问法变）

explanation:
1 )  两个地方 insert code, 选项变了，变成分开问， 答案还是Gender
12) JAN, FEB, MAR 变成 item1, item2, item3, 选项也随之变了，但是意思不变
18) 选项变了，C, D, 选项加了ONLY
      C. The _ERROR_ variable can only be used in expressions in the DATA  step
      D. The _ERROR_ variable only contains the number of the observations that caused the data error
sorry that  I cannot remember the other two choices, but this question may change a little due to changes in C, D
23) Correct choice change to sasdatafolder, which was sasdata in the original 70..... please pay attention to libname statement valid format
61) 将IF STATEMENT单独抽出来考，问哪个选项equal  if age ne 16 and age ne 15 then group 1, 选项不变
70) 意思没变，将选项变成陈述语句
correct answer is need  parenthese  in the drop statement


有些以前没有的题目

1, variable lengthen format doesn't change the variable lengthen.  考了两次

2. do until, do while, 每个各考一次

3. 这道题考了，以前的帖子上有

data course;

input exam;

datalines;

50.1

;

run;

proc format;

value score 1 – 50 = ‘Fail’

            51 – 100 =‘Pass’;

run;

proc report data =course nowd;

column exam;

define exam / display format=score.;

run;

What is the value for exam?

A. Fail

B. Pass

C. 50.1

D. No output

Answer： C

4. 下面五个有几个是正确的libref

work. one
two
_two
2_two

DATA

libref is 1 to 8 characters long, beginswith a letter or underscore, and contains only letters, numbers, orunderscores.

Finally, good luck to everyone!!