题目内容
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Scarcely ______ down when ______ a knock at the door.
A．had he sat; did he hear B．he had sat; did he hear
C．he had sat; he heard D．had he sat; he heard
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更多“Scarcely ______ down when ____…”相关的问题
Back in the early 1960s, when the laser【C2】______developed, it was viewed by some as a fascinating research tool; others called it a【C3】______toy. Since that time, the laser has proved to be an【C4】______of many uses. In fact, in many places it's becoming a part of【C5】______life. Take, for example, what's happening at some supermarkets. Food-shopping Americans are coming【C6】______with lasers and computers for the first time. But they're hardly【C7】______it, until they get to the checkout line. With scarcely a glance at the items, the clerk【C8】______them across a hole, where a special marking on each item is scanned by a low-powered laser【C9】______inside the machine, connected to a remote computer. It started a few years ago, when food processors【C10】______the time had come to put code markings on every one of their thousands of food products. This would make them【C11】______identifiable to a computer. The scanning laser beam was an【C12】______device for reading these markings, and so the Universal Product Code was born.
【C13】______every package today, every can and bottle, has these unique symbols.【C14】______is the time-consuming stamping of prices on each item. Prices are shown【C15】______the shelf.
This mew technology promises to【C16】______food products moving smoothly on and off supermarket shelves, which will help keep overhead down and prices【C17】______At the end of each business day, the remotely-located computer gives the store manager a total picture of the day's【C18】______--what the needs to restock,【C19】______, and what he can mark down and put on sale.
As for the customer, the most dramatic change is【C20】______checkout lines keep moving.
【C1】
A．recorder
B．register
C．machine
D．teller
A、Scarcely he had got; when
B、Scarcely had he got; than
C、Scarcely had he got; when
D、Scarcely had he got; soon
A.appropriately
B.scarcely
C.generally
D.presumable
He was so ______in his pride that he scarcely took the trouble to be civil.
A．damaged
B．injured
C．spoiled
D．wounded
________ asleep when a terrible noiseawakened me.
A、Scarcely had Ifallen
B、Scarcely I hadfallen
C、I had fallenscarcely
D、I scarcely hadfallen
A. then
B. than
C. when
D. and
A.Scarcely I had entered the room
B.had I scarcely entered the room
C.Scarcely had I entered the room
D.I had scarcely entered the room
A．scarcely gained
B．would scarcely gain
C．had scarcely gained
D．was scarcely gaining
A.hardly
B.nearly
C.scarcely
D.barely
