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【单选题】
下肢交通静脉瓣膜功能不全是指
A.
浅静脉明显曲张
B.
大隐静脉瓣膜功能异常
C.
小隐静脉瓣膜功能异常
D.
深静脉瓣膜功能异常
E.
连接于深、浅静脉之间的静脉瓣膜功能异常
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【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
【多选题】有关瓣膜术后抗凝的问题，下列哪些说法正确（）
A.
术后立即开始抗凝
B.
术后第2天开始拔出心包纵隔引流管后开始抗凝
C.
凝血酶原活动度维持在30%-40%
D.
换瓣术后每日口服华法林5mg，以防血栓形成
E.
根据凝血酶原活动度调整华法林的用量