【判断题】【消耗次数：1】
半导体ROM是非易失性的，断电后仍然能保持记忆
①
正确
②
错误
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【简答题】
半导体存储器分成两大类[填空1]和[填空2]，其中RAM具有易失性，常用于存储临时性数据。
随机题目
【单选题】
Mary tiptoed over and took the clock away
because she hated to hear it ____ when she was
trying to go to sleep.
①
sounding
②
ringing
③
ticking
④
humming
【单选题】
Under this ____ pressure some of the rocks
even became liquid.
①
intensive
②
weighty
③
intense
④
bulky
【单选题】
The patient was fully ____ during the operation.
①
liberal
②
sensible
③
aware
④
conscious
【单选题】
He might have been killed ____ the timely arrival of the ambulance.
①
but for
②
except for
③
besides
④
except
【单选题】
You must be careful when ___ on the highway.
①
you driving
②
are driving
③
driving
④
you were driving
【单选题】
— We have to stop talking here. Listen, _____!
—Hurry up, or we’ ll be late.
①
There goes the bell
②
There does the bell go
③
There the bell goes
④
Goes the bell there
【单选题】
Even if his letter ____ tomorrow, it ____ too late to do anything.
①
will arrive...is
②
should arrive...were
③
arrives...will be
④
arrives...would be
【单选题】
— The water changes into thick ice covering rivers and lakes
in winter in Harbin.
—_____ in Urumqi and children go skating on it then.
①
So is it
②
So it does
③
So it is
④
So does it
【单选题】
You’ ll have to____ your wrongdoing one day.
①
answer for
②
answer to
③
ask for
④
allow for
【单选题】
Classification is a useful ____ to the organization of knowledge in any field.
①
means
②
approach
③
mode
④
manner