It’s not easy for the expert to ______ pig flu.in humans from regular human seasonal influenza.    
#84349
A
distinguish
B
separate
C
identify
D
recognize
推荐题目
A man is being questioned in relation to the ________ murder last night.
#83218
A
advised
B
attended
C
attempted
D
admitted
What you have done will not have _____your fame.
#69644
A
a good effect in
B
effected
C
effect
D
a good effect on
It’s two years since they ____ each other, and they are going to get married next month. 
#74866
A
were in love with
B
fell into love with
C
have loved
D
fell in love with