（）延长了货物运程和在途时间，导致了运力的浪费和资金的积压
A、迂回运输
B、对流运输
C、过远运输
D、重复运输
参考答案：C
7. There is no ___________ in trying to talk him into joining us. He enjoys being alone.
A．doubt
B．wonder
C．hope
D．Point
下列有关生活中常见的有机物的说法正确的是（ ）
A．汽油、苯、乙醇都属于烃类物质
B．含5个碳原子的有机物，每个分子中最多可形成5个碳碳单键
C．乙醇能被氧化成乙酸，两者都能与金属钠反应
D．煤的干馏可得煤油；甲烷、乙烯和苯能通过石油分馏得到
___________ in trying to talk him into joining us. He enjoys being alone.