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举一反三
【单选题】质子密度加权成像主要反映的是（）
A.
组织中氢质子的含量的差别。
B.
组织密度差别。
C.
组织中原子序数的差别。
D.
组织弛豫的差别。
E.
组织中水分子弥散的差别。
【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】关于核孔复合体的论述，下列哪一项是不恰当的______
A.
有核定位信号的蛋白进入细胞核不需要核孔复合体
B.
介导蛋白质入核转运，介导RNA核糖核蛋白颗粒(RNP)出核转运
C.
核蛋白通过核孔复合体由细胞质转运到核内需要能量
D.
生物分子通过被动扩散和主动运输进出核孔复合物