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【简答题】

土壤有机圈功能是什么?

题目标签:土壤功能
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参考答案:
参考解析:
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刷刷题刷刷变学霸
举一反三

【多选题】土壤中磷素的来源( )。

A.
成土矿物
B.
土壤有机质
C.
所施磷肥
D.
降雨

【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】土壤液态水的类型包括:

A.
吸湿水
B.
膜状水
C.
毛管水
D.
重力水

【多选题】监控平台有哪些功能?

A.
管理设备
B.
用户权限管理
C.
数据流管理
D.
录像存储管理
E.
与其它系统联动

【单选题】黏重的土壤一般含有( )

A.
比较多的次生矿物
B.
比较少的有机质
C.
比较多的砂粒 、
D.
团聚体