As there is less and less coal and oil, scientists are exploring new ways of making use of ____ energy, such as sunlight, wind and water for power and fuel.
#18985
A
original
B
alternative
C
convenient
D
staple
推荐题目
To their great _____, Tom’s problem proved not to be as serious as they had feared.
#19110
A
happy
B
worry
C
anxiety
D
relief
His test results are not very _____. He does well one week and badly the next.
#20507
A
invariable
B
consequent
C
continuous
D
consistent
The new stadium（体育场） being built for the next Asian Games（亚运会） will be ________ the present（现在的） one.
#18134
A
as three times big as
B
three times as big as
C
as big as three times
D
as big three times as
With the help of the new equipment, our factory produced ________ VCD players in 2001 as the year before.
#20626
A
as many as twice
B
twice more than
C
as twice many
D
twice as many
We need to spend more time researching these suggestions so that we can make a(n) _______ choice.
#18045
A
informed
B
talented
C
apparent
D
known