【单选题】

. Read this memorandum. 

. Choose the lest sentence from the list A-I to fill each of the blanks. 
. For each blank (8-12) mark one letter (A-I) on your Answer Sheet. 
. De not mark any letter twice. 
. One answer has teen given as an example.
MEMORANDUM 
To: Filma Williams ,school of Architecture 
From : Ram S. Johnson ,Physical Plant Operations 
Subject : Air-conditioning Installation Costs for East Hall. 
Date : 4.4.94 
As you requested in your memo of March 15, we have studied the costs of installing air conditioning for the seven offices and two studio classrooms in Eest Hall ... ...example....`. . 
Office and Classroom installation 
Estimates were obtained from three contractors on the costs of covering the offices and classrooms ... ... 8... ... The work would take about three weeks. 
Because the central unit would be installed on the roof, some noise problems might occur during a four-or five-day period......9...... Sheet metal work to build out lest in the classes could be done on weekends , and the overtime labour costs of about $1,500 have been included in the estimates. 
Arrangements were not made to do the office space installation on weekends `.. ... 10... .. 
Additional Installation 
Because a larger installation, including a more powerful central unit, would be necessary to handle the halls and stairways ,an additional $6 , 000 would be required for the equipment. .....11 ...... If this additional work were delayed until a later time, a new central unit would be required along with changes in the pipe way ......12...... 
Summary 
The total job for the building would be about $ 35, 000 if done at one time. A two-stage installation would cost about $55 ,000. I can get official bids at your request.
Example: A 
A As you suggested, we also sought information on the additional cost of air 
conditioning in the entrance halls and stairways. 
B All these three were in the $ 20,000 to $25,000 range. 
C This later installation would cost about $20,000. 
D However, class interruption should be minimal. 
E In the same way, each of these three would take at least one month. 
F Therefore ,the total cost was this $6 ,000 plus another $5,000. 
G Labour costs would be an additional S 5 ,000,bringing the total cost of the addition to $11 ,000. 
H Each faculty member could expect to have workers in the office for about one day. 
I So faculty members can continue their office work as usual.