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【单选题】
剧毒药和麻醉药的最主要保管原则是A.
药品用中应中英文对照
B.
加锁并认真交班
C.
装密封瓶内保存
D.
与内服药分开放置
E.
药盒外用蓝色边标记
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【简答题】电路如图所示，其中R=R f 。 （1）这个电路的功能是什么？ （2）试求输出电压的取值范围。 （3）若要求电路输入数字量为200H时，输出电压Uo=5V，那么UREF应取何值？ （4）此电路的分辨率是多少？
【简答题】Henry Ford was the first person to build cars which were cheap，strong and fast．He was able to se11 millions of cars because he could produce them in large numbers at a time；that is，he made many cars o...
【简答题】Henry Ford was the first person to build cars which were cheap,strong and fast.He was able to se11 millions of models because be could produce them in large numbers at a time;that is,he made a great m...
【简答题】Do you know Fei Junlong and Nie Haisheng? Fei Junlong was born in 1965. He is a Chinese astronaut selected（选拔）as a member of the Shenzhou program. He was born in Jiangsu and joined the People’s Liber...
【简答题】Henry Ford was the first person to build cars which were cheap，strong and fast．He was able to se11 millions of models because be could produce them in large numbers at a time；that is，he made a great m...
【单选题】套类零件的加工特点，按精度要求而定。作为配合的孔，一般都有较高的（）精度。
A.
尺寸、形位、表面粗糙度
B.
尺寸、形状、和表面粗糙度
C.
尺寸、位置、表面粗糙度
D.
形状、位置、和表面粗糙度
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