Examine this statement:SELECT student_id, gpaFROM student_gradesWHERE gpa > &&value;You run the statement once, and when prompted you enter a value of 2.0. A report is produced. What happens when you run the statement a second time?()
A.An error is returned.
B.You are prompted to enter a new value.
C.A report is produced that matches the first report produced.
D.You are asked whether you want a new value or if you want to run the report based on the previous value.
第1题:
A.Source,VolumeControl,Speaker,Amp
B.Source,Amp,VolumeControl,Speaker
C.Amp,Source,VolumeControl,Speaker
D.Speaker,Amp,VolumeControl,Source
第2题:
RNA转录的原料是
A.AMP、GMP、CMP、UMP
B.AMP、GMP、CMP、TMP
C.ATP、GTP、CTP、UTP
D.ATP、GTP、CTP、TTP
E.dATP、dGTP、dCTP、dUTP
第3题:
支气管哮喘患者,交感神经β受体功能低下可导致( )
A细胞内环磷酸腺苷(c-AMP)水平升高
B磷酸二酯酶活性升高
C细胞内环磷酸鸟苷(c-AMP)水平升高
D细胞内环磷酸鸟苷(c-AMP)水平下降
E细胞内环磷酸腺苷(c-AMP)水平下降
第4题:
某文本型字段的值只能是字母且不允许超过4个,则可将该字段的输入掩码属性定义为( )。
A.AAAA
B.&;&;&;&;
C.LLLL
D.####
第5题:
第6题:
【填空题】听歌曲填空,并注意填空部分的连读。每空一词。   I lie(1)________ at night see things in black(2)_______ white I’ve only(3)________ you inside my mind You know you have(4)________ me blind I(5)_________ awake and pray (6)________ you will look my way