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.
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.
A. work year-round, using all-weather instruments such as the dredge or a 20-foot-long implement known as a bull rake
B. work year-round by using all-weather instruments like hydraulic dredges or 20-foot-long implements known as a bull rake
C. working year-round and using such all-weather instruments as a hydraulic dredge or a 20-foot-long implement known as a bull rake
D. working year-round use all-weather instruments like hydraulic dredges or 20-foot-long implements known as a bull rake
E. work year-round using all-weather instruments, for example, a dredge or 20-foot-long implements known as bull rakes
OA:A
我的困惑在D.
除了agreement【a bull rake与 implements 单复不一】之外,官方解释说the version fail to complete the comparison between amateur and professional clammers.