The ______ of air and water makes it impossible to live on the moon.
#13795
A
presence
B
absence
C
dependence
D
evidence
推荐题目
 Paper bags produced every year are ______ the world’s production of vehicles.
#12437
A
as three times heavy as 
B
three times weight of
C
three times the weight of
D
three times as heavier as
 Our teacher told us to write a _____ composition.
#14488
A
two-thousand-word
B
two-thousand-words
C
two thousands words
D
two-thousands-word