【单选题】【消耗次数：1】
My pain ____ apparent the moment I walked into
the room, for the first man I met asked
sympathetically: “Are you feeling all right?”
①
must be
②
must have been
③
had been
④
had to be
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相关题目
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As I knew him better, I discovered that my____ had been right.
①
enjoyment
②
improvement
③
impression
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environment
【单选题】
Must I take a taxi?No, you _______. You can take my car.
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had better to
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don’t
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must not
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don’t have to
【单选题】
My teacher had been with me several weeks before I understood that everything has a name.
①
A．在我知道每样东西都有一个名字以前，老师已经教我好几个星期了。
②
B．老师和我相处了好几个星期，我都不知道每样东西还有一个名字。
③
C．在我知道每样东西都有一个名字以前，老师和我已经相处好几个星期了。
④
D．老师教了我好几个星期，我才知道每样东西都有一个名字。
【单选题】
I often ______ the cooking for my family, but recently I have been too busy to do it.
①
will do
②
do
③
am doing
④
had done
【单选题】
I have been looking forward to ____ from my parents.
①
：hear
②
：being heard
③
：be heard
④
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【多选题】
You speak ____________ you had really been there.
①
as soon as
②
as many as
③
as if
④
as though
【单选题】
You are ____ to have had the help of such a man.
①
thoughtful
②
considerate
③
fortunate
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moderate
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—Who broke the window ? —Not me. It must have been ____ else.
①
someone
②
anyone
③
everybody
④
nobody
【判断题】
A: Have you been wasting time on computer games again? B: Not really. I’ve been studying a lot and I need a break.
①
正确
②
错误
随机题目
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计算机安全属性中的完整性是指（ ）。
①
系统中的软、硬件必须配备完整
②
系统的安全机制必须完整
③
信息不被偶然或蓄意地删除、修改、伪造、乱序、重放、插入等破坏的特性
④
网络的通讯机制必须完整
【单选题】
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TCSEC系统评价准则是一个评估计算机系统安全的标准
②
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③
TCSEC系统评价准则是一个评估计算机系统稳定性高低的一个标准
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TCSEC系统评价准则是一个评估计算机系统性价比的一个标准
【单选题】
下面计算机安全不包括（ ）。
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要防止计算中的信息被恶意篡改
②
要防止计算机信息辐射被恶意窃听
③
要防止病毒攻击造成系统瘫痪
④
要防止计算机辐射，造成操作员人身伤害