A.水利工程施工
B.水利工程建设环境保护
C.水土保持施工
D.机电及金属结构设备制造
第2题
A.C1=93.9uF, C2=75.13uF
B.C1=9.39uF, C2=75.13uF
C.C1=93.9uF, C2=7.513uF
D.C1=9.39uF, C2=751.3uF
第7题
A、SELECT c1,c2,MAX(c3) FROM table_name HAVING c1>1
B、SELECT c1,c2,MAX(c3) FROM table_name GROUP BY c1 HAVING c2>1
C、SELECT c1,c2,MAX(c3) FROM table_name GROUP BY c1,c2 HAVING c2>1
D、SELECT c1,c2,MAX(c3) FROM table_name WHERE c1>1 GROUP BY c2 HAVING c2>1
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