皮皮学，免费搜题
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【多选题】
半灌浆套筒按非灌浆一端连接方式可以分为( )A.
直接滚扎直螺纹灌浆套筒
B.
剥肋滚扎直螺纹灌浆套筒
C.
铸造灌浆套筒
D.
机械加工灌浆套筒
E.
镦粗直螺纹灌浆套筒
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
【简答题】目前，被认为确定和控制物流成本最有前途的方法是______。
【简答题】简述细菌内毒素与外毒素的主要区别。
【单选题】Why do we want to follow those “best” people?
A.
Because we want to give them some advice.
B.
Because we want to show we are as good as them.
C.
Because we want to get their signature.
D.
Because we want to teach them a lesson.
【简答题】A．稳定 B．治安好 C．有前途 D．交通便利
【单选题】________ over everything whenever we want to make a decision, many people believe, and we will have less chance of making mistakes.
A.
To think
B.
Think
C.
Thinking
D.
Thought
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