Tourism, _______ it brings in money to a country, can also result in damage to the World Heritage sites there.
#30698
A
once
B
while
C
if
D
as
推荐题目
(2013·高考湖南卷)You must learn to consult your feelings and your reason________you reach any decision.
#30664
A
although
B
before
C
because
D
unless
I asked him whether he had done all the work himself ________ whether he had had any assistance.
#80295
A
and
B
but
C
nor
D
or
e-commerce worries some merchants, it contributes to the development of delivery industries.
#30582
A
When
B
Unless
C
While
D
Until
______ we have enough evidence (证据), we can't win the case.
#30742
A
Once
B
As long as
C
Unless
D
Since