【单选题】细菌培养物进行药敏试验采用的细菌生长阶段是
【单选题】计算机的内存器由许多存储单元组成,为使计算机能够识别和访问这些单元,给每个单元一个编号,这些编号称为()。
【单选题】有一个 1MB 的存储器 , 由 64 K ×1 BIT的DRAM芯片组成, 若该芯片内部为 4 个 128 ×128阵列组织的存储单元,每单元刷新间隔不超过2ms,采用异步刷新,则刷新信号周期为( )
【单选题】聚醚多元醇中构成的链节 -CH 2 -CH 2 -O- 、 -CH 2 -CH ( CH 3 ) -O- ,其亲水性比较
【单选题】听力原文:W: I don't think we can find a better hotel around here at this time. M: Let's walk a little further to see if there is another one. I just can't bear the traffic noise here. What will the speake...
A.
Look for a more expensive hotel.
B.
Go to another hotel by bus.
C.
Try to find a quiet place.
D.
Take a walk around the city.
【单选题】下列描述中,不正确的是
B.
程序是指令的集合,计算机语言是编写程序的工具
C.
计算机语言都是形式化的语言,它有一个语法规则和定义
【单选题】计算机的内存储器是由许多存储单元组成的,为使计算机能识别和访问这些单元,给每个单元一个编号,这些编号称为()
【单选题】听力原文:M: Can I have a fruit cake? W: Sorry, we have only a chocolate cake. Q: What does the man want? (18)
A.
He wants to have a long walk.
B.
He wants a chocolate cake.
C.
He wants a fruit cake.