题目
How does foam extinguish an oil fire ?______.
A.By cooling the oil below the ignition temperature
B.By removing the fuel souce from the fire
C.By excluding the oxygen from the fire
D.By increasing the weight of the oil
第3题
A.How are you today
B.How does the desk feel
C.How does the toy bear feel
第5题
第6题
A.How do it feelIt’s hard
B.How does it feelIt’s hard
C.How does it tasteIt’s hard
第10题
A.how the work does
B.how was the work to be done
C.how does the work
D.how the work was to be done
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