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【单选题】
两协议中要求
A.
若事务T已对数据对象A加共享锁,则其他事务不能再对A加任何锁
B.
若事务T已对数据对象A加排他锁,则其他事务不能再对A加任何锁
C.
若事务T已对数据对象A加锁,则其他事务只能再对A加相同类型的锁
D.
事务T中第一个解锁操作必须出现在最后一个加锁操作的后面
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参考答案：
举一反三
【单选题】_____________ best friend is a girl. I often learn English with _____________. [     ]
A.
I, she
B.
My, her
C.
Mine, her
查看完整题目与答案
【单选题】I know the name _____ the girl. [     ]
A.
in
B.
on
C.
of
查看完整题目与答案
【简答题】充满高科技 be filled with ____
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【单选题】I ____________ a Chinese girl. I like China very much. [     ]
A.
am
B.
is
C.
are
查看完整题目与答案
【简答题】阅读理解。 Nora is an American girl. She studies in a middle school. She has a little sister. Her name is Kate. Kate is only four. Nora likes Kate very much. Today is Sunday. Nora wants her pen. She takes ...
查看完整题目与答案
【多选题】当流量阀为节流阀时,( )回路用于低速.轻载,且负载变化较小的液压系统。
A.
进油节流
B.
旁油节流
C.
回油节流
D.
A+B+C
查看完整题目与答案
【简答题】用所给词的适当形式填空。 1. This______ (be) his dictionary. 2. Jenny is a girl. ______ (she) family name is Green. 3. This is a boy. ______ (he) name is Wang Gang. 4. ______ (I) name is Lisa Barnes. 5. Where is__...
查看完整题目与答案
【单选题】当流量阀为节流阀时,( )回路用于低速.轻载,且负载变化较小的液压系统。
A.
进油节流
B.
旁油节流
C.
回油节流
D.
A或C
查看完整题目与答案
【判断题】1993年,别洛韦日国家森林公园进入教科文组织世界文化遗产名录。
A.
正确
B.
错误
查看完整题目与答案
【简答题】I think Eric (justify) ________ in refusing to help the beautiful girl.
查看完整题目与答案
相关题目：
【单选题】_____________ best friend is a girl. I often learn English with _____________. [     ]
A.
I, she
B.
My, her
C.
Mine, her
查看完整题目与答案
【单选题】I know the name _____ the girl. [     ]
A.
in
B.
on
C.
of
查看完整题目与答案
【简答题】充满高科技 be filled with ____
查看完整题目与答案
【单选题】I ____________ a Chinese girl. I like China very much. [     ]
A.
am
B.
is
C.
are
查看完整题目与答案
【简答题】阅读理解。 Nora is an American girl. She studies in a middle school. She has a little sister. Her name is Kate. Kate is only four. Nora likes Kate very much. Today is Sunday. Nora wants her pen. She takes ...
查看完整题目与答案
【多选题】当流量阀为节流阀时,( )回路用于低速.轻载,且负载变化较小的液压系统。
A.
进油节流
B.
旁油节流
C.
回油节流
D.
A+B+C
查看完整题目与答案
【简答题】用所给词的适当形式填空。 1. This______ (be) his dictionary. 2. Jenny is a girl. ______ (she) family name is Green. 3. This is a boy. ______ (he) name is Wang Gang. 4. ______ (I) name is Lisa Barnes. 5. Where is__...
查看完整题目与答案
【单选题】当流量阀为节流阀时,( )回路用于低速.轻载,且负载变化较小的液压系统。
A.
进油节流
B.
旁油节流
C.
回油节流
D.
A或C
查看完整题目与答案
【判断题】1993年,别洛韦日国家森林公园进入教科文组织世界文化遗产名录。
A.
正确
B.
错误
查看完整题目与答案
【简答题】I think Eric (justify) ________ in refusing to help the beautiful girl.
查看完整题目与答案
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