It shows that a knowledge of first aid can make a real       .
#69229
A
effect
B
effort
C
importance   
D
difference
推荐题目
 The Group of Eight(G8) __ the eight richest countries in the world.
#69031
A
consists of
B
is consisted of
C
is made up
D
consist in
I spent five hours repairing the car. The work was ____ simple. 
#63878
A
nothing but
B
anything but
C
something of
D
all except