皮皮学，免费搜题
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【多选题】
鱼皮是指哪些鱼的皮的干制品( )。A.
鲨鱼
B.
金枪鱼
C.
石斑鱼
D.
旗鱼
E.
鲲鱼
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】Exercise: Choose a proper phrase in its appropriate form to filleach blank in the following sentences. pay for pay back pay into pay out 1. I _______ a lot of money for that car.
A.
pay for
B.
pay back
C.
pay into
D.
pay out
【多选题】下列哪些与吗啡相符
A.
能加强大脑皮质的兴奋过程，用于中枢性呼吸衰竭
B.
化学结构属于生物碱类化合物
C.
制备注射液时，常与盐酸成盐
D.
因是生物碱类化合物，所以具有马奎斯反应
【多选题】The main purpose of this letter is to______.A．introduce the library's service to readersB．recommend new books to the readersC．send a few catalogues to readersD．express thanks to the readersE. how to u...
A.
A正确
B.
B正确
C.
C错误
D.
D错误
E.
E错误
【多选题】下列叙述哪些与吗啡性质相符
A.
天然吗啡为左旋体
B.
吗啡是两性化合物
C.
吗啡的氧化产物为阿扑吗啡
D.
吗啡在盐酸或磷酸存在时加热生成双吗啡
E.
吗啡遇硫酸试液呈紫色，继变为蓝色，最后变为棕色
【多选题】指出下列叙述中哪些性质与吗啡相符( )
A.
吗啡是两性化合物,临床常用盐酸盐
B.
易发生氧化反应,颜色变深,生成毒性较大的为双吗啡
C.
具有五个手性碳原子,临床用其外消旋体
D.
与钼硫酸试液反应呈紫色,继变为蓝色,最后变为绿色
E.
在盐酸或硫酸存在下加热生成阿朴吗啡
【单选题】Which of the following parts is NOT contained in the books in the library that introduce Frank Lloyd Wright?
A.
Pictures of Wright's work.
B.
Diagrams of Wright's work.
C.
Biography of Wight.
D.
Wright's comments on other architects.
【单选题】Which of the following does not belong to variable-pay programs?( )
A.
Piece-rate pay
B.
Merit-based pay
C.
Skill-based pay
D.
Fixed pay
【单选题】The books introduce us to all the amazing animals _____ the world.
A.
out
B.
up
C.
around
D.
in
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