Professor Jordon is well known for his _____ into the habits of the common housefly.
#6923
A
examination
B
introduction
C
research
D
expression
推荐题目
As is well known, the brain performs a very important _______, which controls the nerve system of the body.
#7476
A
motion
B
action
C
function
D
fact
In China, peach is a ______of long life and therefore makes an ideal birthday present.
#5126
A
symbol
B
sign
C
signal
D
symptom
The factory near the seaside was closed down as a(n) ________ of the terribly bad management and fund shortage.
#6504
A
summary
B
consequence
C
conclusion
D
effect