下列语句为列出rID为’00001’和rID为’00002’的reviewer所评分过的不同电影ID,空白处应该填写——SELECT mID FROM Rating WHERE rID = ‘00001’____SELECT mID FROM Rating WHERE rID = ‘00002’ A: EXCEPT B: UNION C: INTERSECT D: DIVID
下列语句为列出rID为’00001’和rID为’00002’的reviewer所评分过的不同电影ID,空白处应该填写——SELECT mID FROM Rating WHERE rID = ‘00001’____SELECT mID FROM Rating WHERE rID = ‘00002’ A: EXCEPT B: UNION C: INTERSECT D: DIVID
下列语句为列出rID为’00001’和rID为’00002’的reviewer所评分过的不同电影ID,空白处应该填写( )SELECT mID FROM Rating WHERE rID = ‘00001’____SELECT mID FROM Rating WHERE rID = ‘00002’ A: EXCEPT B: UNION C: INTERSECT D: DIVID
下列语句为列出rID为’00001’和rID为’00002’的reviewer所评分过的不同电影ID,空白处应该填写( )SELECT mID FROM Rating WHERE rID = ‘00001’____SELECT mID FROM Rating WHERE rID = ‘00002’ A: EXCEPT B: UNION C: INTERSECT D: DIVID
传送带产品检测:用红外传感器检测传送带上的产品,若20s 内无产品通过,则传送带停止,同时报警。设检测信号从00002端子输入,传送带由10000点驱动,报警信号由10001点控制,00000为起动按钮,00001为停止按钮。
传送带产品检测:用红外传感器检测传送带上的产品,若20s 内无产品通过,则传送带停止,同时报警。设检测信号从00002端子输入,传送带由10000点驱动,报警信号由10001点控制,00000为起动按钮,00001为停止按钮。
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