【单选题】【消耗次数：1】
Heisacollegeteacherofmanyyears’_______.
①
experiment
②
experiments
③
experiences
④
experience
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相关题目
【单选题】
It was ___ back home after the experiments.
①
not until midnight did he go
②
until midnight that he didn’t go
③
not until midnight that he went
④
until midnight when he didn’t go
【单选题】
______, the experiment will be successful
①
If carefully doing
②
If did carefully
③
If carefully done
④
If doing carefully
【单选题】
The experiment_________ in the lab now.
①
was done
②
is being done
③
has been done
④
is doing
【多选题】
_____________ the bad weather, they did experiments on ways of storing solar energy.
①
Though
②
Although
③
Despite
④
In spite of
【单选题】
It was_____ back home after the experiment.
①
not until midnight did he go
②
until midnight that he didn’ t go
③
not until midnight that he went
④
until midnight when he didn’ t go
【单选题】
After the experiment in the laboratory, they began _________ their reports.
①
written
②
write
③
to write
④
writes
【简答题】
What are peoples responses to Amys experience?
【单选题】
They will inform him ____ any progress they make in the experiment.
①
about
②
on
③
of
④
with
【单选题】
Will you please____________ the experiment youve just made?
①
repeat
②
recover
③
renew
④
reform
【单选题】
This will be a good____________ for us to exchange experience.
①
opportunity
②
question
③
attitude
④
exercise
随机题目
【单选题】
定点数补码加法具有两个特点：一是符号位与数值位一起参与运算；二是相加后最高位上的进位( )
①
与数值位分别进行运算
②
与数值位一起参与运算
③
要舍去
④
表示溢出
【单选题】
两个补码数相减，只有在（）时有可能产生溢出，在（）时一定不会产生溢出
①
符号位相同，符号位不同
②
符号位不同，符号位相同
③
符号位都是0，符号位都是1
④
符号位都是1，符号位都是0