溶剂回收脱水塔开车，进料中有（）会造成塔底产品长时间不合格。
A.丁二烯
B.游离水
C.甲苯
D.苯
参考答案：B
Lack of teamwork can result in _____by rivals when we have a basketball game.
A．defeated
B．being defeated
C．defeating
D．to be defeated
全国经营管理的输港澳果菜是指除广东省自行管理的供港澳果菜以外，国家对供应港澳市场实行配额加放行证管理的水果、速冻蔬菜。 ( )
