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【判断题】
对象的事件可以由用户自定义。 【 】A.
正确
B.
错误
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【判断题】Column belonging to a primary key of a table T is allowed to take on NULL values for any row in T.
A.
正确
B.
错误
【单选题】( ) 277. Le professeur donne un cours linguistique ____ étudiants.
A.
à les
B.
à l’
C.
à
D.
aux
【多选题】View the Exhibit and examine the resource consumption details for the current plan in use by the database instance.Which two statements are true based on the output?（）
A.
An attempt to start a new session by the user belonging to DSS_QUERIES fails with an error
B.
A user belonging to DSS_QUERIES can log in to a new session but the session will be queued
C.
The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group waited for the CPU due to resource management .
D.
The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group waited for the CPU due to resource management, I/O waits, and latch or enqueue contention
【单选题】我们所理解的艺术图像的三种类型,以下表述错误的是?
A.
具象图形，理性抽象图形，感性抽象图形。
B.
具象图形，冷抽象图形，热抽象图形。
C.
自然主义的形式，几何抽象形式，自由抽象形式。
D.
欧几里德形，非欧几里德形，随机图形。
【单选题】If you want to get there quickly, you'd better take the track in the forest. The underlined wor
A.
277. If you want to get there quickly, you'd better take the track in the forest. The underlined word means ____. A．a path
B.
a car
C.
channel
D.
a canal
相关题目：
【单选题】( ) 277. Le professeur donne un cours linguistique ____ étudiants.
A.
à les
B.
à l’
C.
à
D.
aux