聚乙烯及聚丙烯常代替玻璃试剂瓶,但最好不储存()。
A.呈碱性的盐类
B.氢氟酸
C.浓硫酸
D.浓氢氧化钠
参考答案:C
监理规划的作用不包括( )。
A.建设监理主管机构对监理单位监督管理的依据
B.业主确认监理发行合同的主要依据
C.监理单位内部考核的依据
D.承包单位施工过程中处理质量问题的依据
在工程中的标准模块中定义了如下数据类型: Type fruitorange As Integerapple As Integer End Type 在窗体上有—命令按钮Command1,要求当单击命令按钮时在C:\根目录下的顺序文件myfrtac.txt 中写入一条记录,下列能够完成改操作的事件过程是______ 。
A.Private Sub Command1_Click() Dim myfrt As fruit myfrt. orange = 5 myfrt. apple = 10 Open “c:\myfrta. txt” For Output As #1 Print #1, myfrt. orange; myfrt. apple Close #1 End Sub
B.Private Sub Command1_Click() Dim myfrt As fruit myfrt. orange= 5 myfrt. apple= 10 Open “c:\myfrtac. txt”For Input As #1 Print #1, myfrt, orange; myfrt. apple Close #1 End Sub
C.Private Sub Command1_Click() Dim myfrt As fruit myfrt. orange= 5 myfrt. apple = 10 Open “c:\myfrtac. txt” For As #1 Print #1, myfrt. orange; myfrt. apple Close #1 End Sub
D.Private Sub Command1_Click() Dim myfrt As fruit myfrt. orange = 5 myfrt. apple= 10 Open “c:\myfrtac..txt” For Output As #1 Print myfrt. orange; myfrt. apple Close #1 End Sub