首页
登录
职称英语
Most consumers are familiar with bar codes. Those black-and-white stripes ap
Most consumers are familiar with bar codes. Those black-and-white stripes ap
游客
2025-06-15
29
管理
问题
Most consumers are familiar with bar codes. Those black-and-white stripes appear on almost every product purchased. Often the codes are scanned at the checkout counter, causing the item name and its price to appear on (141) the cash register screen and the receipt. This gives a record to the consumer and helps store management monitor inventory.
Many delivery services use bar codes to track the progress of each envelope, package, or crate in transit. Every item (142) a bar code, which is read at a number of points from the moment it leaves the sender’s hands to the moment the recipient accepts the delivery.
An interesting use for the bar code has been developed by a scientist who works with bees. The scientist attached bar codes to the backs of individual bees in order to (143) them and to follow their movements. Laser scanners at the entrance of the hive read the bar codes to monitor how long each bee had been gone from the hive. By keeping (144) of individual bees, scientists hope to learn more about honey production. Knowing how far bees travel to gather pollen and how many trips they make back to the hive could eventually help beekeepers predict honey yields. [br]
选项
A、tracking
B、to track
C、tracked
D、track
答案
D
解析
观察选项可知,此处要选择track的恰当形式。再结合空格前后的内容可知,空格内应填入一个名词,故应选(D)track。keep track of是固定搭配,意为“追踪…的行踪”。
转载请注明原文地址:http://tihaiku.com/zcyy/4119983.html
相关试题推荐
Pleaserefamiliarizeyourselveswiththefollowingpoolsafetyprecautions.Asa
Pleaserefamiliarizeyourselveswiththefollowingpoolsafetyprecautions.Asa
Mostconsumersarefamiliarwithbarcodes.Thoseblack-and-whitestripesap
StarStruckIfyou’renotastargazer,you【K7】______notbefamiliarwiththebe
Underthenewlaw,consumersareentitledto______ifproductsmalfunctionorfai
Thesedays,everybodybuyscomputersoftware.Consumerspurchaseallkindsofso
Thesedays,everybodybuyscomputersoftware.Consumerspurchaseallkindsofso
Thesedays,everybodybuyscomputersoftware.Consumerspurchaseallkindsofso
Mr.Stevensorderedfull-colorbrochures______theblack-and-whiteonesheprevi
______thestateoftheeconomythesedays,mostconsumerscannotaffordtobuy
随机试题
[originaltext]M:Well,Iwouldn’twanttomissyourhouse-warmingpartybutI
Englishmagazineswilloftenadvertisethemselvesasbeingdevotedtosport
Theprocessby【C1】______ofwhichhumanbeingsarbitrarilymakecertainthing
计划生育技术服务监督员由哪些专家组成()。A.计划生育技术专家 B.计划生
( )是由发行公司委托存券银行发行的。A.全球存托凭证 B.美国存托凭证
A.用量不宜过大B.用量宜加重C.用量宜小D.用量则更大些药物的性质与用量的关系
卵圆孔瓣膜解剖上关闭的年龄是在出生后A.1~2个月 B.2~3个月 C.4~
患者,男性,17岁,踢球淋雨后发热,体温39℃,头痛,全身肌肉酸痛、咳嗽2天,咳
A.1:1 B.2:1 C.3:1 D.4:1
以下表现可发生于化脓性脑膜炎新生儿,除了 A.前図隆起 B.体温不升 C.
最新回复
(
0
)