无论马路上是否有车辆,都是不能使用旱冰鞋滑行的()
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放学后要结伴直接回家,少走小路,多走大路,少在外面停留()
A. 正确
B. 错误
化学消毒剂(chemicaldisinfectant)是指用于杀灭什么的化学药物()。
A. 微生物
B. 寄生虫
C. 真菌
D. 病原微生物
E. 细菌
在硫分配系数一定的条件下,钢中的硫含量取决于炉料中的硫含量和渣量。
A. 正确
B. 错误
The database instance has the following parameter setting: OS_AUTHENT_PREFIX = OPS$ OS_ROLES = FALSE REMOTE_OS_AUTHENT = FALSE REMOTE_OS_ROLES = FALSE TIMED_OS_STATISTICS = 0 You have a local operating system user SKD.You create a database user OPS$SKD, and then assign external authentication. The user OPS$SKD has theCREATE SESSION privilege. What would you achieve by the above process()
A. The database user OPS$SKD will be able to administer the database.
B. The authentication detail for the database user OPS$SKD is recorded in the password file.
C. The local operating system user SKD will be able to access the database instance without specifying theusername and password.
D. The database user OPS$SKD has to login with the password of the local operating system user SKD toaccess the database instance.