食品抗氧化剂有()。
A.硝酸盐、亚硝酸盐
B.糖精、甘草、甜味菊苷
C.苯甲酸、山梨酸、丙酸钠
D.硫磺、亚硫酸钠
E.没食子酸丙酯、二丁基羟基甲苯
参考答案:E
连枷胸是指()
A.单处肋骨骨折
B.多处肋骨骨折
C.多根肋骨骨折
D.多根多处肋骨骨折
E.两侧胸部多根肋骨骨折
窗体上有一个图片框和一个命令按钮(拖动模式为自动),执行程序后,拖动按钮经过图片框时输出结果为 Private Sub Picture1_DragOver(Source As Control, X As Single, Y As Single, State As Integer)Static a As BooleanIf Not a Then Print"AA" a=True End If End Sub Private Sub Picture1_MouseMove(Button As Integer, Shift As Integer, X As Shingle, Y As Single)Static b As BooleanIf Not b Then Print"BB" b=TrueEnd If End Sub
A.AABB
B.BBAA
C.AA
D.BB