()是沿泥凝土裂缝凿一条深糟内嵌填各种防水材料,如环氧砂浆及预缩砂浆、沥青砂浆等,以防渗水。
A. 表面涂抹修补
B. 凿槽嵌补
C. 挤压修补
D. 预应力修补
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螺口灯头的相(火)线应接于灯口中心的舌片上,零线接在螺纹口上。()
A. 正确
B. 错误
会计准则规定,企业应当以权责发生制为基础进行会计确认、计量和报告。
A. 正确
B. 错误
Assuming PUBLIC has been granted all privileges on table T1, which of the following statements would continue to permit any user to add rows to table T1, but not remove them?()
A. REVOKE DROP ON t1 FROM PUBLIC
B. REVOKE UPDATE ON t1 FROM PUBLIC
C. REVOKE DELETE ON t1 FROM PUBLIC
D. REVOKE CONTROL ON t1 FROM PUBLIC
邮区中心局邮政业务视检的常用方法主要有()。
A. 调阅检查与会审检查
B. 定期检查与抽查
C. 突击检查与重点检查
D. 现场检查与日常检查