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【单选题】
15岁，1型糖尿病患者，近期开始普通胰岛素治疗，血糖控制良好。但近来胰岛素注射部位出现肿胀、发红、发痒，下述对于这些皮肤病变描述不恰当的是A.
在1多半会自行消退
B.
可以用抗组胺药物治疗
C.
反映了人体对胰岛素的变态反应
D.
代表了一种变态反应，常伴有胰岛素耐药性
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皮皮学刷刷变学霸
举一反三
【单选题】_____engines may only require starting valves to be fitted to one bank of cylinders.
A.
Single-cylinder Vee type
B.
In-line
C.
Multi-cylinder Vee type
D.
Any of the above
【单选题】The study of computer architecture involves ______.
A.
hardware organization only
B.
programming requirement only
C.
both
D.
neither
【单选题】Smaller engines can be made more rigid than large ones and may not have _____.
A.
connecting rods
B.
crankshaft
C.
crankcase
D.
through bolts
【单选题】下列各组物质的变化不能用勒夏特列原理解释的是（ ）
A.
氯水在光照条件下颜色变浅最终变为无色
B.
将FeS固体投入到含有Cu 2 ＋ 的废水中以除去Cu 2 ＋
C.
500 ℃时比室温更利于合成氨
D.
乙酸乙酯的合成中用浓硫酸比稀硫酸更有利于乙酸乙酯的生成
【单选题】Engines may only require starting valves to be fitted to one bank of cylinders
A.
Single-cylinder Vee type
B.
ln-line
C.
Multi-cylinder Vee type
D.
Any of the above
【单选题】Exhaust pipes for separate diesel engines can be combined only when （）
A.
space limitations prevent separately run pipes
B.
the engines are small auxiliary units
C.
they are arranged to prevent gas backflow to each engine
D.
a waste heat boiler is installed
【单选题】Emails are _____ and _____ than the Post Office.
A.
Emails are slower and more expensive than the Post Office.
B.
Emails are less expensive and considerably quicker than the Post Office.
C.
Emails are great and more fun than the Post Office.
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