【简答题】
实验测得甘草流浸膏的溶血指数为1:400,已知纯甘草皂苷的溶血指数为1:4000,甘草浸膏中甘草皂苷的含量为[填空1]。
【单选题】
在窗体上画1个命令按扭(名称为Command1)和1个文本框(名称为Text1),然后编写如下事件过程:
???? Private Sub Command1_Click()
???? ? x=Val(Text1.Text)
???? ? Select Case x
???????? Case 1,3
????????????? y=x*x
???????? Case Is>=10,Is<=-10
????????????? y=x
???????? Case -10 To 10
????????????? y=-x
?End Select
?????? End Sub
程序运行后,在文本框中输入3,然后单击命令按扭,则以下叙述中正确的是______。
【单选题】
______,the boy worked out the problem quickly.
【单选题】
Look out ! That tree _______ fall down.
【单选题】
Look out! That tree ___ fall down.
【单选题】
____ find out what had happened.
①
Not until he woke up did he
②
Not until he woke up he
③
Until he woke up did he
【单选题】
We looked at four cars today. The first two were far too expensive, but____ ones were reasonable priced.
【单选题】
Many people who had seen the film were afraid to go to the forest when they remembered the scenes ___ people were eaten by the tiger.
【单选题】
The audience were ( ) by the opening night of that play.
【单选题】
They were [填空] up by a fishing boat.