【单选题】
8-6 图示电路中开关S闭合前电路已处于稳态,t=0时开关S闭合,则t≥0时电感的电流iL(t)= 。<img src=https://huaweicloudobs.ahjxjy.cn/C23EEEAC19BF383EA0B92B8DC6D88CC0.jpg title=Image00039.jpg alt=Image00039.jpg width=342 height=150 style=width: 342px; height: 150px;/>
①
<img class=jc-formula data-tex=7{ e }^{ -25t }A src=https://huaweicloudobs.ahjxjy.cn/2323A6A2888EB9DFA0142ECF507D6A42.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=7{ e }^{ -t }A src=https://huaweicloudobs.ahjxjy.cn/1A895386A0F3E923A8482044A3AF3B3D.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=1.4{ e }^{ -25t }A src=https://huaweicloudobs.ahjxjy.cn/322AD29BC87C87A81E48C541E32EC55B.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=1.4{ e }^{ -t }A src=https://huaweicloudobs.ahjxjy.cn/8B597E995F1FCB2622416D1679C23371.png style=vertical-align: middle;/>
【单选题】
The seller gave men a thirty percent ____on the shirt. Don’t you think it’s a good bargain?
【单选题】
13.Don’t ______ to let me know if there’s anything I can do for you.
【单选题】
商业银行在经营中首先考虑的是赢利性原则。这一命题( )。
【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】
Peter’s mother kept telling him that he should give up smoking, but _____ didn’t help.
【单选题】
——How did you like Nick’s performance last night ?—— To be honest ,his singing didn’t ________to be much?
【单选题】
函数模板定义如下: template Max( T a, T b ,T }下列选项正确的是( )
①
int x, y; char z; Max(x, y, z);
②
double x, y, z; Max( x, y, z);
③
int x, y; float z; Max( x, y, z);
④
float x; double y, z; Max( x,y, z);
【单选题】
设有以下字符串定义,则数组s1和s2( )。char s1[]={ S ,t, r ,i,n, gchar s2[]= String