It’s said that this kind of plant only gives off this strange perfume on ________ conditions which the scientists are trying to figure out now.
#10953
A
outstanding
B
certain
C
obvious
D
ordinary
推荐题目
In spite of his disappointment, he _______ a weak smile.
#10955
A
confirmed
B
persuaded
C
cancelled
D
managed
(2013·重庆，31)Recycling is one way to protect the environment，reusing is ________.
#11611
A
another
B
the other
C
one another
D
one
—Can I help you ? — Please give me two ____________ the eggs.
#14376
A
dozen of
B
dozen
C
dozens of
D
dozens
A good plan must be _______, so that it can adapt to some necessary changes.
#14280
A
flexible
B
convenient
C
specific
D
considerate