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【单选题】有如下事件过程：Private Sub Form_Load() Show Dim Arr() As Variant Arr = Array(1, 3, 5, 7, 9, 11, 13, 15) Call converse(Arr) For i = 0 To 7 Print arr(i); Next iEnd Sub 以上程序的功能是，通过调用Converse过程，将数组Arr中的元素逆序存放并输出...
A.
Private Sub converse(dim a() as Variant ) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
B.
Private Sub converse(dim a() as Variant) Dim T Dim J As Integer J = (LBound(A) + UBound(A)) / 2 For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
C.
Private Sub converse(a() As Variant) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
D.
Private Sub converse(a() As Variant) Dim T Dim J As Integer J = Int((LBound(A) + UBound(A)) / 2) For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
【单选题】31318 (15)一刚架受载情况如图所示,设其应变能为U,则由卡氏定理 求得的位移δ为截面A的( )。
A.
水平位移和竖直位移的代数和
B.
水平位移和竖直位移的矢量和
C.
总位移
D.
沿45°(合力)方向的线位移
【多选题】关于应变能,说法正确的是( )。
A.
在静载作用下，弹性体在变形过程中，如不考虑能量的损失，积蓄在弹性体内的应变能U在数值上等于外力所作的功W
B.
应变能密度根据其作用可以分为体积改变能密度与畸变能密度
C.
单元体在应力偏张量作用下不改变形状，只改变体积
D.
单元体在应力球张量作用下不改变形状，只改变体积
E.
应变能密度量纲上等于力与位移之积