In 1803 the United States purchased Louisiana from _____.

以现金购买车间办公用品280元，应编制会计分录（  ）。  A: 借：制造费用 280     贷：库存现金 280  B: 借：管理费用 280     贷：库存现金 280  C: 借：销售费用 280    贷：库存现金 280  D: 借：财务费用 280     贷：库存现金 280 

国际网球联合会成立于 A: 1903 B: 1803 C: 1913 D: 1923

霍尔效应哪一年发现的？ A: 1881 B: 1879 C: 1803 D: 1831

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)

要查找所有BMP图形文件，应该在“查找”对话框的名称栏中输入（）。 A: BMP B: BMP* C: *BMP D: *.BMP

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

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}

正常人血浆中的粒子总浓度为( ) A: 280～320mol/L B: 280～320mmol/L C: 280～320mg/L D: 280～320g/L