55._________A. weightB. formC. riskD.work

Heavy residual fuel oils are heated prior to centrifuging to ______.A.reduce fuel weightB.

The marriage ______ took place in the church.A: meetingB: formC: ceremonyD: activity

Studies show that flavanols can do all the following EXCEPT______.A．take off extra weightB

55._________A. lengthB. dealC. lotD. extent

55._________A. letsB. allowsC. makesD. leaves

化学泡沫灭火器的使用温度范围是________A．-10～55℃ B．-21～55℃ C．4～55