皮皮学，免费搜题
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【多选题】
影响晶体纯度的因素A.
母液中的杂质
B.
结晶速度
C.
晶体粒度
D.
粒度分布
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】We would like you ________ and we look forward _________ you.
A.
to come. To see
B.
come; to seeing
C.
come; to see
D.
to come; to seeing
【单选题】We would like you to know that we greatly your timely help .
A.
appreciate
B.
thank
C.
accept
D.
admire
【单选题】What we would like you to know is that we greatly ___________your timely help.
A.
compliment
B.
appreciate
C.
thank
D.
attach
【单选题】We would like you to send us details of your various ranges, sizes, colours and prices, and also samples of the different qualities of material used．
A.
include
B.
including
C.
conclude
D.
concluding
【简答题】Why are you advised not to take any pirate or illegal taxi?
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