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【多选题】
卡波姆是液体药剂良好的A.
助悬剂
B.
增稠剂
C.
辅助乳化剂
D.
黏合剂
E.
缓释控释材料
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【简答题】比较下列离去基团离去能力的大小：( )＞( )＞( )＞( )。 (A)RO - (B)ROO - (C)Cl - (D)
【单选题】When the native guide said 'Kang-a-roo ', he really meant'______'
A.
Ah, it is a special kind of animal.
B.
I wonder what you have said.
C.
What do you mean by pointing at that animal?
D.
I have no idea of what you are referring to.
【简答题】deep-roo_ed
【单选题】The roo ________ is very clean.
A.
of upstairs
B.
upstairs
C.
in upstairs
D.
from upstairs
【单选题】In what sense was Toby 'safe'?
A.
The overhanging rock would protect him from falling rocks.
B.
He felt a hand on his shoulder.
C.
His rucksack was protected.
D.
He had hidden under a canopy.
【单选题】The guests left, a lot of wastes in the room. .
A.
． left
B.
． to have left
C.
． to left
D.
． having left
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