一短跑选手，在地球上以10s的时间跑完了100m，在飞行速度为0.98c，飞行方向与跑动方向相反的飞船中观测者看来，

A．128M

B．256M

C．512M

D．1024M

The minimum amount of oxygen required to support life is __ .

A.14 percent

B.15 percent

C.16 percent

D.17 percent

(1)( ) USD110,000.00

(2)( ) USD121,000.00

(3)( ) USD120,000.00

(4)( ) any amount above the required minimum

A．8.67 MJ

B．4.16 MJ

C．2.47 MJ

D．1.00 MJ

According to the passage, l/25 second is the minimum amount of time required for the

A．recording of an image on film

B．generation of artificial light

C．creation of a photographic emulsion

D．human eye to react to light

What is the minimum amount of training an employee receives？

A．Three days every month.

B．Three days every seven month.

C．Three days every year.

What is the total amount of postage required to mail the package？

A．$5.45

B．1

C．0.95

What is the minimum amount of training an employee receives？

A．Three days every month.

B．Three days every six months.

C．Three days every year.

A．1

B．2

C．3

D．4