The improper use of words in brackets in the following sentences is () A: The laboratory is just an abandoned shed. Mary stirs the slag in the pot all day B: She worked until she died at the age of 67, leaving her beloved laboratory C: The precision and difficulty of the experiment require scientists, workers and PLA officers and men to work hard (day and night) D: As he talked, he asked us to pass on a skull

The improper use of words in brackets in the following sentences is () A: The laboratory is just an abandoned shed. Mary stirs the slag in the pot all day B: She worked until she died at the age of 67, leaving her beloved laboratory C: The precision and difficulty of the experiment require scientists, workers and PLA officers and men to work hard (day and night) D: As he talked, he asked us to pass on a skull


B it can be a lifetime of toil or a lifetime of toil



The improper use of the words in brackets in the following sentences is ()
A. At night, after the expansion of Chaoyang Road, the lights are in full bloom
B. Harry Potter is famous for its vivid plot and vivid characters
C. On several prosperous commercial streets in Nanning City, the people who enjoy shopping are all smiles
D. We need to learn from others' successful experience, but we can't copy it mechanically


c