【判断题】
<img class=jc-formula data-tex=行列式\quad \begin{ vmatrix } a \begin{ matrix } b c \end{ matrix } \\ d \begin{ matrix } e f \end{ matrix } \\ a \begin{ matrix } b c \end{ matrix } \end{ vmatrix }=0 src=https://huaweicloudobs.ahjxjy.cn/C87E34DE6102091E6EA6E6BA2DE1A9FA.png style=vertical-align: middle;/>
①
正确
②
错误
【简答题】
已知函数 。下面是实现计算该函数的程序，请填空完成以下程序。
Private Sub Command1_Click()
Dim k As Integer, i As Integer, s As Long
n = 5 : k = 1
For i = 1 To n
s = s +[填空]
Next i
Print s
End Sub
Function pow(a As Integer, b As Integer) As Long
Dim i As Integer, t As Long
t = 1
For i = 1 To a
[填空]
Next i
pow = t
End Function
【单选题】
There were plenty of places to ______ the highway and be unobserved.
①
pull off
②
pull out
③
pull up
④
pull down
【单选题】
By the end of next month we ____ this assignment.
①
will finish
②
will be finishing
③
will have finished
④
have finished
【单选题】
By the end of December the technicians will [填空]installed the computers
①
have
②
/
③
be
④
did
【单选题】
By the end of next month we _____this assignment.
①
will finish
②
will be finishing
③
will have finished
④
have finished