A．pours out withB．pours atC．pours withD．pours out into

Melted iron is poured into the mixer much ________

Melted iron is poured into the mixer much ________

The term "pour point" is defined as the lowest temperature at which lubricating oils will

Properties of a good refrigeration oil include_____.A.low wax contentB.high pour pointC.hi

If you pour oil on water, it_________float. A. shall B. will C. can D. may

AThe Great Wall is Bso a well－known Ctourist attraction that Dmillions of people pour in e