<mark></mark>标签表示（）

Marks on transport packages are classified according to their purpose A: Transport mark B: Indicative mark C: Warning mark D: Packing mark

Safety mark and protective mark refer to A: Transport mark B: Shipping packing mark C: Indicator sign D: warning sign

MRS指的是

下面if语句统计“成绩（mark）优秀（90分以上）的男生以及不及格（60以下）的男生”的人数，正确的语句为（ ）。 A: if(gender=="男")and((mark<60)and(mark>=90)):n+=1 B: if(gender=="男")and((mark<60)or(mark>=90)):n+=1 C: if(gender=="男")or(mark<60)or(mark>=90)):n+=1 D: if(gender=="男")or(mark<60)and(mark>=90):n+=1

边际替代率如果用MRS表示的话，我们有两个公式成立：公式1：MRS=MUx/MUy；公式2：MRS=-∆Y/∆X。于是

The simple figures, words and Numbers written, embossed and brushed on the shipping package are called A: indicative mark B: transportation mark C: warning mark D: sales mark

下列程序片段用于产生成绩等第，已定义score%和mark$分别表示成绩和等第。即60分（含）以上及格、75分（含）以上良好、90分（含）以上优秀，能获得预期结果的是______。 A: If score>=90 Then Mark="优秀" ElseIf score>=75 Then Mark="良好" ElseIf score>=60 Then Mark="及格" End If B: If score>=60 Then Mark="及格" ElseIf score>=75 Then Mark="良好" ElseIf score>=90 Then Mark="优秀" C: If score>=90 Then Mark="优秀"If score>=75 Then Mark="良好"If score>=60 Then Mark="及格" D: If score>=60 Then Mark="及格" ElseIf score>=75 Then Mark="良好"ElseIf score>=90 Then Mark="优秀" End If

9. Mark drives quickly. Mark drives carefully.

Where will Mark and Marlena go to visit Mark's teacher?