题目内容
（请给出正确答案）
A.68
B.60
C.57
D.78
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更多“已知以下数据段： DATA SEGMENT VAR1 DB …”相关的问题
DATA SEGMENT
NUM1 DB 20 ;NUM1分配______B
NUM2 DB '1AH,2DH,35H,40H' ;NUM2分配______B
NUM3 EQU 05H ;NUM3分配______B
NUM4 DB NUM3 DUP(0) ;NUM4分配______B
DATA ENDS
A. 对于UPDATA一次只能修改一列的值
B.对于UPDATA不能加WHERE条件
C. 对于UPDATA可以指定要修改的列和想赋予的新值
D. 对于UPDATA只能修改不能赋值
Asynchronous Transfer Mode (ATM)is a(1)that promises to change the fabric of local and wide area communications.
The key advantage of ATM is the capability to move voice, data, graphics and(2)at speeds ofup to 2 gigabits per second.
At ATM switch allows you to create a(3)network that is completely independent from the(4)configuration ofthe network.
ATM uses a(5)called cell switching to convert data into fixed length cells of 53 bytes each, so they can be switched very quickly and efficiently.
供选择的答案：
(1) technology (2) techniques (3) technique (4) method
(5) methods (6) logical (7) local (8) wide
(9) physical (10) program (11) characters (12) video images
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