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【单选题】
Think机型BIOS更新过程中电池电量不得少于多少?
A.
0.1
B.
0.3
C.
0.2
D.
0.4
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皮皮学刷刷变学霸
举一反三
【判断题】在对流层中,气温垂直递减率约为0.65°C/100m
A.
正确
B.
错误
【单选题】On Monday, you dropped the DEPT table from your schema and then you re-created the DEPT table in your schema. On Wednesday, you have a requirement to restore the DEPT table from the recycle bin.  Whic...
A.
You can restore the DEPT table by using the Oracle Flashback Drop feature, provided you use the RENAME TO clause.
B.
You can restore the DEPT table by using the Oracle Flashback Drop feature and a system-generated name will be assigned to the restored table.
C.
You cannot restore the DEPT table by using the Oracle Flashback Drop feature because a table with the name DEPT already exists in your schema.
D.
You cannot restore the DEPT table by using the Oracle Flashback Drop feature because the contents of  the recycle bin are purged every 12 hours by default.
【单选题】Evaluate the following SQL statements in the given order: DROP TABLE dept? CREATE TABLE dept (deptno NUMBER(3) PRIMARY KEY, deptname VARCHAR2(10))? DROP TABLE dept? FLASHBACK TABLE dept TO BEFORE DROP...
A.
It recovers only the first DEPT table.
B.
It recovers only the second DEPT table.
C.
It does not recover any of the tables because FLASHBACK is not possible in this case.
D.
It recovers both the tables but the names would be changed to the ones assigned in the RECYCLEBIN.
【判断题】截面弯曲刚度是个定值,不随弯矩变化。
A.
正确
B.
错误
【判断题】STK卡的容量比SIM卡的小。
A.
正确
B.
错误
【单选题】下面哪一个SQL语句将删除DEPT表中的所有数据,并永久删除DEPT表的整个结构()
A.
DROP TABLE dept;
B.
DELETE TABLE dept;
C.
TRUNCATE TABLE dept;
D.
DELETE * . * FROM dept; [END CODE]"
【简答题】STK
【单选题】组态王 WEB 功能采用( )结构,客户可以随时随地通过 Internet/Intranet 实现远程监控。
A.
B/S
B.
C/S
C.
TCP/IP
D.
PCZ
【单选题】关于流行性腮腺炎腮腺肿大的特点,说法正确的是
A.
以耳垂为中心,向前、后、下发展,下颌角边缘清
B.
局部皮肤发热发红
C.
触诊柔软有波动感
D.
触痛不敏感
E.
常一侧腮腺肿胀后2~4天累及对侧,或双侧同时肿大
【简答题】_______ A.Dept=DS B.Dept=DS WITH CHECK OPTl0N C.Dept='DS' D.Dept='DS' WITH CHECK OPTIoN A. B. C. D.
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