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【单选题】
在掺杂半导体中,多子的浓度越高,的浓度 。A.
越低
B.
越高
C.
无法判断
D.
不变
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举一反三
【单选题】--- I wish you _____ the party last night. --- It’s a shame that I ____.
A.
had attended; didn’t
B.
attended; didn’t
C.
had attended; hadn’t
D.
could attend; haven’t
【单选题】________ is to dance.
A.
That interests Mary really
B.
Which really interests Mary.
C.
What really interests Mary
D.
What really interest Mary
【单选题】—“I wish I had attended the party yesterday."—“It's too bad that you _______.We met a lot of people.
A.
haven't
B.
hadn't
C.
had missed it
D.
didn't
【简答题】__________ was to return to school. A．That really interested him B. What really interested him C. Which really interested him D. That interested him really
【单选题】下列有关计算机内存的叙述错误的是()
A.
微机的内存功能可分为RAM和ROM
B.
通常所说的计算机内存容量指RAM和ROM合计的存储器容量
C.
CPU对ROM只取不存，里面存放计算机系统管理程序，如监控程序、基本输入/输出系统模块BIOS等
D.
RAM具有可读写性和易失性
【简答题】A．She's really hungry. B．She's really thirsty. C．She's really angry. D．She's really sleepy.
【简答题】有关计算机内存，叙述错误的是（ ）。
【单选题】有关计算机内存,叙述错误的是 ( )。
A.
RAM具有可读写性,易失性
B.
微机的内存按功能可分为RAM和ROM
C.
通常所说的计算机内存容量指RAM和ROM合计的存储器容量
D.
CPU对ROM只取不存,里面存放计算机系统管理程序,如监控程序、基本输入/输出系统
【单选题】Mary has _______day today．
A.
really a busy
B.
a busy really
C.
a really busy
D.
a real busy
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