车辆管理所及其工作人员不得泄露机动车驾驶证档案中的个人信息。
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水平裂缝会使深、浅侧向电阻率都降低。
A. 正确
B. 错误
Which two statements are true regarding B-tree index()
A. The leaf blocks in the index are doubly linked.
B. The leaf node stores a bitmap for each key value.
C. The rows with NULL value in key columns also have entries in the index.
D. The deletion of a row from the table causes a logical deletion in index leaf block and the space becomes available for the new leaf entry.
安全保卫体系包括银监部门、()、银行保卫机构、保安机构
A. 公安机关
B. 治安机构
C. 金融管理办公室
D. 网管