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【单选题】
设有两个事务T1和T2，其并发操作序列如下表所示。下列说法中正确的是( )。 T1 T2 读A=100 A=A*2写回 读A=200 ROLLBACKA.
该操作序列不存在问题
B.
该操作序列丢失修改
C.
该操作序列不能重复读
D.
该操作序列读出脏数据
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举一反三
【单选题】**Error** E:\DOCUME~1\ADMINI~1\桌面\852311~1.ASM(5) Illegal instruction,这表示第几行有错?
A.
无法判断
B.
5
【单选题】Why do tea tasters taste tea with milk?
A.
Most British people drink tea that way.
B.
Tea tastes much better with milk.
C.
Tea with milk is healthy.
【简答题】阅读理解。 At one time, computers were expected largely to remove the need for paper copies of documents because they could be stored electronically. But for all the texts that are written, stored and sent...
【简答题】Wenn die Mutter nicht zu Hause war, ____die Kinder oft vor dem Femseher.
【单选题】Why do tea tasters taste tea with milk? 查看材料
A.
Most British people drink tea that way.
B.
Tea tastes much better with milk.
C.
Tea with milk is healthy.
【简答题】下列（ ）不是金融期货。
【单选题】--Would you like some tea? --Yes, please. By the way, do you have any milk? I prefer tea_______ milk.
A.
from
B.
with
C.
to
D.
for
【单选题】—Would you like some tea, Tina? —Yes, please. And some milk as well. I prefer tea ____ milk. [ ]
A.
and
B.
to
C.
than
D.
without
【简答题】阅读理解。 At one time, computers were expected largely to remove the need for paper copies of documents (文件) because they could be stored electronically. But for all the texts that are written, stored and...
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