(2013·福建毕业班质量检查)—What does PM 2.5 mean?—It's a professional ________ indicating the condition of air pollution.
#11739
A
term
B
item
C
number
D
mark
推荐题目
The Korean government plans to import Chinese cabbage from China, as the recent rainstorm has______ the price.
#12932
A
driven up
B
taken up
C
set up
D
looked up
The manager promised to keep us______ of how our business was going on.
#11852
A
being informed
B
informed
C
informing
D
to be informed
Shortly after the accident two ____ policemen were sent to the spot to keep order.
#13995
A
score of
B
scores
C
score
D
scores of