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举一反三
【单选题】下列关于谷胱甘肽的描述正确的是
A.
谷胱甘肽由4个氨基酸残基组成
B.
谷胱甘肽含有3个肽键
C.
谷胱甘肽具有酶的活性
D.
谷胱甘肽参与体内氧化-还原反应
E.
以上描述都是错误的
【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】组成谷胱甘肽的氨基酸
A.
谷氨酸、半胱氨酸和甘氨酸
B.
谷氨酸、胱氨酸和甘氨酸
C.
谷氨酸、同型半胱氨酸和甘氨酸
D.
谷氨酰胺、半胱氨酸和甘氨酸
E.
谷氨酰胺、胱氨酸和甘氨酸