题目内容

以下自定义数据类型的语句中,正确的是

A.Type student ID As String * 20 name As String * 10 age As Integer End student
B.Type student ID As String * 20 name As String * 10 age As Integer End Type
C.Type student ID As String name As String age As Integer End student
D. C.Type ID As String * 20 name As String * 10 age As Integer End Type student

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下面为单精度实型(即单精度浮点型)变量的是

A. x$
B. x&
C. x!
D. x#

长整型常数的类型说明符为

A. %
B. #
C. &
D. @

有数据定义语句:Dim a,b As Integer Dim x%,y as Integer执行语句后,不是整型变量的是

A. a
B. b
C. x
D. y

某二级公路路基压实施工中,用灌砂法测定压实度,测得灌砂筒内量砂质量为5820g,填满标定罐所需砂的质量为3885g,测定砂锥的质量为615g,标定罐的体积3035cm3。灌砂舌称灌砂筒内剩余砂质量为1314g。试坑挖出湿土重为5867g,烘干土重为5036g,室内击实试验得最大干密度为1.68g/cm3,试求该测点压实度和含水率。

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