皮皮学，免费搜题
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【单选题】
自制进水器中，污水最先经过的是（）A.
沙
B.
石子
C.
纱布
D.
木炭
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Sally is helping her father dig worms for fishing. "That's exactly enough." he says as she places a worm in his tin. "How many do you need?" she enquires. "I use 4 worms on my hook and reckon on havin...
A.
66
B.
69
C.
81
D.
86
【简答题】How many eggs do you need?
【单选题】---How many do you need? ---________________
A.
Two is enough
B.
.20 dollars a kilo
C.
10 miles
D.
12 hours
【单选题】Sally is helping her father dig worms for fishing. "That's exactly enough," he says as she places a worm in his tin. "How many do you need?" she enquires. "I use 4 worms on my hook and reckon on havin...
A.
66
B.
69
C.
81
D.
86
E.
264
【简答题】How many do you need? We need two .
【简答题】三极管各极对公共端电位如图所示,则处于放大状态的硅三极管是 ( )
【简答题】简述封面图标注的注意事项？
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