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【多选题】
线虫原体腔内的体腔液功能有
A.
维持虫体形态
B.
协助运动
C.
交换营养物质
D.
排泄废物
E.
具有流体静压作用保护内部器官
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
【单选题】真体腔和原体腔的主要区别是( )。
A.
真体腔是中胚层出现后形成的，原体腔是两胚层动物所特有
B.
真体腔 在体壁中胚层和脏壁中胚层之间，而原体腔只有体壁中胚层而无脏壁中胚层
C.
原体腔相当于囊胚腔，真体腔相于原肠腔
D.
真体腔 位于 体壁中胚层与肠壁之间，原体腔 位于 体壁中胚层和脏壁中胚层之间