皮皮学，免费搜题
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【单选题】
属于皮肤衍生物的器官是:A.
毛发
B.
软骨
C.
虹膜
D.
乳房
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】Light levels are carefully controlled to fall within an acceptable level for______ reading convenience.
A.
intentional
B.
ideal
C.
obligatory
D.
standard
【简答题】reading light
【简答题】This is the ______________ for ceiling light and that one is for reading light.
【简答题】Reading comprehension. The sun is the largest source of light. We know that life on the earth depends on the heat of the sun. But the light of the sun is as necessary to life as its heat. Another impo...
【单选题】This is the ______________ for ceiling light and that one is for reading light.
A.
switch
B.
sword
C.
swatch
D.
shift
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