做局部浸润,1OOml利多卡因中加0.5ml的肾上腺素,其浓度将为()
A.1:200
B.1:2000
C.1:20000
D.1:200000
E.1:2000000
参考答案:D
单词拼写:根据句子意思及所给的中文或首字母提示完成单词,请将完整的单词填写在答题卡对应的横线上。每空只能填一词。(5小题,每小题1分,共5分)
小题1: I am going to have a ______(蛋糕) for lunch.
小题2:There is a ______(钢笔) in the box.
小题3:Jim was ______(幸运的) to get a chance to study in America.
小题4: It’s hard to I ______ living in a place where there is no water.
小题5: As her bike is still here, I don’t s______ she has left.
在某一存储器系统中,设有只读存储器10KB,随机存储器54KB,使用16位地址来寻址,其中,只读存储器位于低地址段,其地址范围为( )。
A.0000H~27FFH
B.0000H~OFFFH
C.0000H~3FFFH
D.0000H~4AFFH