8
20
49
1400
第1题:
--- Could I have a bottle of water, please?
--- ____________.
A. Thank you very much
B. Certainly, madam
C. See you later
第2题:
A.reason
B. caution
C. fact
D. cause
第3题:
A、 a bit
B、 a little of
C、 a bit of
D、 a few
第4题:
第5题:
What represents poor sanitary procedures ________.
A.Keep and use a separate filling hose for potable(drinking)water
B.Locate potable(drinking)water tanks as low as possible in the bilge
C.Eliminate enclosed spaces in which trash,food particles,dirt may gather
D.After washing dishes with soap and warm water,sterilize them in water of at least 170℉(76.7℃)
第6题:
第7题:
I really am not qualified to ()the safety or lack of safety in drinking this water.
A、valuate
B、measure
C、evaluate
D、vaulte
第8题:
In the experiment, the burning inside the bottle can___.
A. equalize the air pressure inside and outside
B. make a seal in the neck of the bottle
C. finish up the oxygen inside the bottle
D. produce more oxygen inside the bottle
第9题:
第10题: