更换或调整避雷器连接部位时,应检查连接部位是否存在裂纹和破损,否则应将连接部位()后再进行检修。
A. 解体
B. 拆卸
C. 可靠固定
D. 悬挂
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婴儿末期回忆开始出现,主要表现是出现()和()的行为。
“把查询sc表和更新sc表的grade列的权限受予用户user1”的正确SQL语句是()。
A. GRANT SELECT,UPDATE(grade)ON TABLE sc TOuser1
B. GRANT SELECT sc,UPDATE sc,grade TO user1
C. GRANT SELECT,UPDATE ON TABLE sc.grade TO user1
D. GRANT SELECT ON TABLE sc,UPDATE ON TABLE sc(grade)TO user1
The external circumference of a pair of main bearing shells is slightly larger than that of the bore of the housing which receives themThe difference is termed ().
A. nip
B. nap
C. gap
D. li