小菜小谋，这两个题怎么得出这答案呢？

1)The contents of the raw data file SIZE are listed below:

----|----10---|----20---|----30
72 95

The following SAS program is submitted:

data test;
infile 'size';
input@ 1 height 2. @ 4 weight 2;
run;

Which one of the following is the value of the variable WEIGHT in the output data set?

A. 2
B. 72
C. 95
D. . (missing numeric value)


answer:A

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2)The following SAS program is submitted:

data work.january;
set work.allmonths (keep=product month num_sold cost);
if month='jan'then output work.january;
sales=cost*num_sold;
keep=product sales;
run;

Which variables does the WORK.JANUARY data set contain?

A. PRODUCT and SALES only
B. PRODUCT, MONTH, NUM_SOLD and COST only
C. PRODUCT, SALES, MONTH, NUM_SOLD and COST only
D. An incomplete output data set is created due to syntax errors.

answer: D

所有跟帖： 

• 小谋看来是这次受惊受大了;小菜跟狗狗玩也不出来了.俺不等了。 -戏雨飞鹰- ♀ (0 bytes) () 01/12/2010 postreply 20:56:27

• 幸亏准备睡觉前，我爬上来瞧了一眼，我试试哈 -veggiedoggie- ♀ (511 bytes) () 01/12/2010 postreply 20:58:47

• 有点小错，自己纠正一下下 -veggiedoggie- ♀ (164 bytes) () 01/12/2010 postreply 21:47:45

• 瑕不掩瑜，不能求全责备，u r good enough buddy!! -撅着挺好- ♂ (0 bytes) () 01/12/2010 postreply 21:52:55

• 菜菜，你比我们大学教授讲的都好，真的。 -戏雨飞鹰- ♀ (0 bytes) () 01/13/2010 postreply 08:55:03

• answer to 2 -veggiedoggie- ♀ (109 bytes) () 01/12/2010 postreply 21:01:11

• 鹰姐，你还在吗？我等你一会儿，有事儿您说话。 -veggiedoggie- ♀ (0 bytes) () 01/12/2010 postreply 21:02:45

• 我爱死你了,菜菜。你好牛啊!太高兴了,今天问题全解决了。 -戏雨飞鹰- ♀ (9 bytes) () 01/12/2010 postreply 21:11:32

• what about me? -撅着挺好- ♂ (19 bytes) () 01/12/2010 postreply 21:52:10

• 你靠边站先。猪都归你了，还打鹰的主意？给别人一点机会。。。 -如风网事- ♂ (0 bytes) () 01/13/2010 postreply 10:10:41