At times the balance in nature is ______，resulting in a number of possibly unforeseen effects.
#20601
A
troubled
B
confused
C
disturbed
D
puzzled
推荐题目
Mr Baker is always making _____comments instead of straightforward yes-or-no replies.
#18375
A
ambiguous
B
unconscious
C
amateur
D
punctual
If there were no examinations， we should have ______ at school.
#20671
A
the happiest time
B
a more happier time
C
much happiest time
D
a much happier time
Despite their good service, most inns are less costly than hotels of _____ standards.
#20854
A
equivalent
B
equal
C
alike
D
likely
—What’s Jack up to in the shoe shop? He’s there for ages.—It’s ______ that he hasn’t decided which pair to buy.
#18111
A
sure
B
obvious
C
confusing
D
curious
His failure made his father think him a ___________ boy.
#34832
A
disappoint
B
disappointed
C
disappointing
D
disappointment