皮皮学，免费搜题
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搜题
【单选题】
与盐酸普鲁卡因性质不符的是A.
对光敏感，需避光保存
B.
水溶液显碱性
C.
pH3～3．5时本品水溶液最稳定
D.
易被水解生成对氨基苯甲酸和二乙氨基乙醇
E.
具重氮化-偶合反应
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Thunder and lightening are natural ________.
A.
phenomenon
B.
phenomenons
C.
phenomena
D.
phenomenes
【简答题】Lightening and thunder seem very different from fog，clouds，rain，wind，heat，and other things which make up the weather.____11____ without knowing about the rest of the ____12____，one cannot understand l...
【单选题】So is the weather in England that by lunchtime there could be thunder and lightening.
A.
various
B.
varies
C.
variable
D.
variation
【简答题】Thunder and lightening are ________ of nature.(phenomenon)
【判断题】Natural calamities include heavy weather, thunder storm and lightening, flood, earthquake and fire etc.
A.
正确
B.
错误
【单选题】Thunder,lightening, rain and snow are all natural _____.
A.
scene
B.
phenomenon
C.
phenomena
D.
incident
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