All the desks in the classroom________dust.
All the desks in the classroom________dust.
Michael’s vacuum cleaner squealed loudly, shook violently, and _____. A: filled the air with dust B: dust filled the air C: dust was filled in the air D: dust was filled with the air
Michael’s vacuum cleaner squealed loudly, shook violently, and _____. A: filled the air with dust B: dust filled the air C: dust was filled in the air D: dust was filled with the air
All the desks in the classroom________dust. A: are covered with B: are cover with C: are covering with D: covered with
All the desks in the classroom________dust. A: are covered with B: are cover with C: are covering with D: covered with
She is ______ the dressing table. A: dusted B: dust C: dusting D: to dust
She is ______ the dressing table. A: dusted B: dust C: dusting D: to dust
To effectively control the respirable coal and silica dust exposure of mine workers, it is not necessary to identify the sources of dust generation and quantify the amount of dust liberated by these sources.
To effectively control the respirable coal and silica dust exposure of mine workers, it is not necessary to identify the sources of dust generation and quantify the amount of dust liberated by these sources.
It was ordered ________ put in order. A: the classroom to be B: that the classroom be C: the classroom to D: that the classroom was
It was ordered ________ put in order. A: the classroom to be B: that the classroom be C: the classroom to D: that the classroom was
dust [dʌst]
dust [dʌst]
Dust bowl means______.
Dust bowl means______.
remove the dust from
remove the dust from
Continuous Miner dust control Methods include: dilute, suppress, redirect, or capture dust A: 正确 B: 错误
Continuous Miner dust control Methods include: dilute, suppress, redirect, or capture dust A: 正确 B: 错误