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【单选题】
递减称量法常用称量瓶,称量时( )拿称量瓶。A.
直接用手
B.
戴手套
C.
用夹子
D.
把手洗干净后
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】在window系统中开启GD扩展库的方法是什么?
【单选题】听力原文： A baby spends the first year of life learning to listen. A newborn child comes equipped with a finely tuned pair of ears, but he doesn't yet know how to use them. A buzz of meaningless noise sur...
A.
Because he likes learning.
B.
Because his hearing center is still immature.
C.
Because his ears are immature.
D.
Because he wants to know how to use his ears.
【单选题】Learning to listen _________ — not just _________ — doesn’t come easily to him.
A.
passively, patiently
B.
patiently, patiently
C.
patiently, passively
D.
passively，passively
【简答题】Listen to the dialogue about kids' learning and answer the following questions.
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