数值为532的变量，应使用以下那种数据类型定义比较合适？ A: unsigned charvalue=532； B: unsigned int value=532； C: unsigned long value=532； D: float value=532；

39,368÷532=

In 1803 the United States purchased Louisiana from _____.

In 1803, President Jefferson negotiated the purchase of Louisiana from Mexico.

What will be the output of the following Python code? [br][/br]print("abc DEF".capitalize()) A: abc def B: ABC DEF C: Abc def D: Abc Def

下列设置打开文件对话框OpenFileDialog1的Filter属性正确的是_________。 A: OpenFileDialog1.Filter=Pictures(*.Bmp)|*.Bmp B: OpenFileDialog1.Filter=["Pictures(*.Bmp)"|"*.Bmp"] C: OpenFileDialog1.Filter="Pictures(*.Bmp)|*.Bmp" D: OpenFileDialog1.Filter={Pictures(*.Bmp)|*.Bmp} E: OpenFileDialog1.Filter=(Pictures(*.Bmp)|*.Bmp)

函数定义格式正确的是（） A: def f(n) B: def f(n): C: def (n): D: def fn:

下列语句中，正确的是? def f(a,b,*):;;|def f(a=0,b):|def f(a,b==0):;|def f(a,*b):

以下正确的语句是＿＿＿＿。 A: OpenFileDialog1.Filter=All Files|*.*|Pictures(*.Bmp)|*.Bmp B: OpenFileDialog1.Filter="All Files"|"*.*"|"Pictures(*.Bmp)"|"*.Bmp" C: OpenFileDialog1.Filter="All Files|*.*|Pictures(*.Bmp)|*.Bmp" D: OpenFileDialog1.Filter={All Files|*.*|Pictures(*.Bmp)|*.Bmp}

以下正确的语句是____。 A: CommonDialog1.Filter= All Files|*.*|Pictures(*.Bmp)|*.Bmp B: CommonDialog1.Filter= "All Files"|"*.*"|"Pictures(*.Bmp) "|"*.Bmp" C: CommonDialog1.Filter= "All Files|*.*|Pictures(*.Bmp)|*.Bmp" D: CommonDialog1.Filter= {All Files|*.*|Pictures(*.Bmp)|*.Bmp}