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【单选题】
标准连接形式,8段LED数码阳极连接,“1”的字形码是()。A.
1
B.
6
C.
F9
D.
0xF9
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反馈参考答案：
举一反三
【单选题】Generally, in order to be preserved in the fossil record, organisms must possess hard body parts such as shells or bones. Soft, fleshy structures are quickly destroyed by predators pr decayed by bacte...
A.
is not likely to appear in the fossil record
B.
is not heavy enough to sink below the surface
C.
is not attractive to predators
D.
takes a long time to decay
【单选题】Many medical experts regard ________ as a kind of intellectual property that should also be legally protected.
A.
subscription
B.
description
C.
ascription
D.
prescription
【简答题】English is now the international language for airline pilots, scientists, medical experts, businessmen and many others. Consequently, more and more people are learning it.
【单选题】Many experts have realized that the current medical system needs ________ to meet the needs of our increasingly aging population. [ ]
A.
reforming
B.
inspecting
C.
forming
D.
achieving
【单选题】In time, the fossil fuel waves may come to be seen as something of a historical blip.
A.
F
B.
O
【单选题】Food and Cancer Medical Experts have suspected for many years that there is a strong link between what a person eats and cancer. They say a new study provides the first evidence that vitamins could re...
A.
Right
B.
Wrong
C.
Not Mentioned
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