卜视左前方看的对象，其面部五官的竖线都（）。
A.向右边的视平线倾斜垂直
B.向左边的视平线倾斜垂直
C.旱水平垂直
D.不同斜向
参考答案：B
What is the decimal value of the binary value 10010？
A．16
B．17
C．18
D．19
Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.
A.Federal Aviation Administration
B.Corps of Engineers
C.National Fire Protection Association
D.National Transportation Safety Board
