【单选题】窗体上已有命令按钮Command1和标签Label1,下列程序运行后,单击Command1按钮,标签Label1中显示的内容是( )。 Option Base 0 Private Sub Command1_Click() Dim a(5)As Integer,n As Integer For i = 1 To 5 a(i)= i n = n + a(i) Next i Label1 = str(...
【判断题】( )医院一天同时进行手术的人数较多,可以将RFID标签像绷带一样贴到病人手术处,以避免在病人进行手术的过程中因人为的疏忽或其他原因出现差错。
【简答题】函数 y= 1 x-5 中,自变量x的取值范围是______;函数 y= x-3 中,自变量x的取值范围是______.
【单选题】下列变化中,构成物质的分子本身发生变化的是()
【简答题】下列变化中,构成物质的分子本身发生变化的是( ) A.糖溶于水 B.衣箱中樟脑丸不见了 C.工业上蒸发液态空气制氧气 D.加热高锰酸钾
【简答题】函数y= 1 x-1 中,自变量x的取值范围是______;函数y= x-3 中,自变量x的取值范围是______.
【简答题】下列变化中,构成物质的分子本身发生变化的是( ) A.香水撒在桌上,很快不见了 B.100ml的水和100ml酒精混合后体积小于200ml C.通电分解水 D.工业上用空气制氧气
【单选题】When the torchlight sprang back to life, the narrator ________.( )
A.
found he was lying on his back
B.
was surprised to see some formidable ghosts
C.
found the horns of a yak were pointing at him
D.
was surprised to see some wild beasts standing close to him