函数sinx+cosx在[0,π/2]上的定积分等于()。
A.0
B.1
C.2
D.1/2
参考答案:C
下列不是进展期食管癌的肉眼类型的是()
A.糜烂型
B.溃疡型
C.缩窄型
D.髓质型
E.蕈伞型
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