Using the information in the text, complete each sentence 14-18 with an expression from the list below.
For each sentence(14-18), mark one letter(A~G)on your Answer Sheet.
Do not mark any letter twice.
A. it suits non-desert-like areas as well.
B. they had borne the old colour for more than sixty years.
C. the new colour is exactly what the military needs at the moment.
D. it has various shades and can warn of dangers.
E. it has rock and soil from desert-like areas as samples.
F. the military needs to adapt to the new environments of operations.
G. there is a significant difference between a dirt colour and a sand color.

填空题 It might take a long time for soldiers to get used to the new colour because 1.

填空题 The scientists think the new paint is the most advanced in that 1.

填空题 The reason for the Ministry of Defence to change the colour is that 1.

填空题 The new colour isn't limited to desert-like environments because 1.

填空题 The phrase "de rigueur" in the last paragraph indicates that 1.