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【多选题】
（ ）会对信息安全产生威胁。A.
计算机病毒的扩散与攻击；
B.
信息系统自身的脆弱性；
C.
有害信息被恶意传播；
D.
黑客行为
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【单选题】If you want to do well on the exam, you______ on the directions that the professor gives and take exact notes.
A.
will have concentrated
B.
have to concentrate
C.
will be concentrated
D.
will be concentrating
【简答题】175保留三位有效数字为_______
【简答题】You each have a chance to talk by yourselves. The examiner gives you a colour photograph to look at and asks you to talk about it. When you have finished talking, the examiner gives your partner a dif...
【简答题】The examiner asks you to talk about something together and gives you a drawing to help you.
【单选题】听力原文：M: Come in, come in! Can I help you? W: Professor Turner, are you giving your Advanced Geology course again next semester? M: Yes. W: I wonder if I could enroll in it, I know it's a graduate cour...
A.
She wants him to recommend books.
B.
She wants to apply to graduate schools.
C.
She wants to take an advanced course.
D.
She wants him to give her a good grade.
【简答题】A．It gives you only a small income. B．It offers good wages but no interest. C．It gives you a lot of responsibility but not much money. D．It is unrewarding in every way.
【单选题】Only when you have completed the basic English course ______ be permitted to take the advanced courses.
A.
you can
B.
can you
C.
you will
D.
that you
【单选题】Physical exercise is socially beneficial because ______.
A.
it gives people competitive advantage
B.
it helps people reduce anxiety
C.
it enables employees to work better for their company
D.
it makes people confident in dealing with others
【简答题】If someone gives you a gift, you should______(wrap) the box to appreciate the gift.
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