At the meeting they discussed three different _______ to the study of radioactive waste.
#5528
A
means
B
methods
C
approaches
D
ways
推荐题目
Her boss expressed his unsatisfaction with ________she has made in the development of market.
#7176
A
little progress
B
the little progress
C
few progresses
D
the few progresses
A dark cloud is a ________ of thunderstorm.
#6254
A
symbol
B
sign
C
mark
D
signal