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计量检定人员出具的检定数据，在裁决计量纠纷或实施计量监督中是否具有法律效力？

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一般而言恐怖症比较适用的心理治疗方法是（）

A. 认知治疗
B. 人本主义
C. 行为主义
D. 精神分析

You are managing the APPPROD database as a DBA which is not using the Oracle-managed files. You plan to duplicate this database in the same system with the name DUPDB.You want to create the same directory structure for duplicate database files as of the target database. You executed the following RMAN commands： RMAN> CONNECT TARGET sys/sys@APPPROD RMAN> CONNECT AUXILIARY sys/sys@DUPDB RMAN> DUPLICATE TARGET DATABASE TO dupdb FROM ACTIVE DATABASE PASSWORD FILE SPILE NOFILENAMECHECK； What are the implications of this command？（）

A. It creates database files for the duplicate database under the Oracle base with a different directory for the duplicate database.
B. It overwrites data files of the target database because a different location for data files is not mentioned for the duplicate database.
C. It creates database files for the duplicate database under the same Oracle home as that of the target database with the same directory structure.
D. It creates database files for the duplicate database under the same Oracle home as that of the target but with a different directory for the duplicate database.

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平行平面玻璃板的两界面互相（），其作用可使倾斜的光线移动（），而不改变方向。

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设有支撑的基坑，应遵循“开槽支撑，先撑后挖、分层开挖和严禁超挖”的原则开挖。

A. 正确
B. 错误

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