问题
单项选择题
下述各图给出的4个并发调度中，不是冲突可串行的是______。
(1)
| T1 | T2 |
| Read (A) Write (B) | Read (A) Write (A) |
| T1 | T3 |
| Read (A) Write (B) | Read (B) Write (A) |
| T4 | T5 |
| Read (A) Write (B) | Read (A) Write (B) |
| T1 | T4 |
| Read (A) Write (B) | Read (A) Write (B) |
A．(1)
B．(2)
C．(3)
D．(4)
答案
参考答案：D