标题: 求解释！！~Prep2012-Pack1-SC-66题 [打印本页] 作者: can1995 时间: 2017-5-14 17:39 标题: 求解释！！~Prep2012-Pack1-SC-66题 Unlike amateur clammers, who usually dig clams by hand during the summer, professional clammers work year-round, using all-weather instruments such as the hydraulic dredge or a 20-foot-Iona implement known as a bull rake.
Awork year-round, using all-weather instruments such as the dredge or a 20-foot-long implement known as a bull rake
Bwork year-round by using all-weather instruments like hydraulic dredges or 20-foot-long implements known as a bull rake
Cworking year-round and using such all-weather instruments as a hydraulic dredge or a 20-foot-long implement known as a bull rake
Dworking year-round use all-weather instruments like hydraulic dredges or 20-foot-long implements known as a bull rake
Ework year-round using all-weather instruments, for example, a dredge or 20-foot-long implements known as bull rakes