单选题 According to many sources, the safest drinking water is from a piped supply.

A. many resources
B. a great deal of information
C. many sausages
D. a great deal of salvage

【正确答案】 B

【答案解析】B．many sources=a great deal of information“许多信息”；many resources“许多资源”；many sausages“许多香肠”；a great deal of salvage“大量的抢救费用”。句意：许多信息表明，最安全的水是管道提供的水。