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【单选题】
下列叙述正确的是()A.
计算机病毒会危害计算机用户的健康
B.
杀毒软件可以查杀任何种类的病毒
C.
感染过计算机病毒的计算机具有对该病毒的免疫性
D.
杀毒软件通常滞后于计算机新病毒的出现
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【简答题】炎热的夏天 2.明亮的教室 3.安静的宿舍 4.干净的书 5.小李又高又白 6.那辆车又旧又重 7.这台机器又复杂又不方便 8.这里又安静又方便 9.这双鞋子又漂亮又便宜 10.校园又大又安静
【简答题】选词填空，从方框中选择合适的单词填入下列句子中。 give out fix up cheer up put up hand out 1. I want to help to ______ food at the food bank. 2. Would you please help me ______ my broken bike. 3. She often goes to hospita...
【简答题】阅读下面的短文，从文后方框中选择恰当的句子填入文中空白处。 When you read this sentence, the population of the earth has grown by 10 people. 1.________ Most of these new people are born in developing countries. 2.________ In the d...
【简答题】Directions: Fill in the blanks in the sentences with the words given in the box. Change the form where necessary. curiosity assume challenge attain giant despair embrace responsibility career boast Ch...
【简答题】黑体是指 的物体,白体是指 的物体,透明体是指 的物体。灰体是 的物体。
【单选题】'Forests are the lungs of our land,' said Franklin Delano Roosevelt. Twenty years ago, the worlds lungs were diseased. Roughly half of all the planets once-luxuriant tropical forests had been felled a...
A.
avoidable
B.
vital
C.
inevitable
D.
perplexing
【简答题】黑体、白体与灰体是根据物体的颜色来区分的。( )
【简答题】选词填空，从方框中选择合适的单词填入下列句子中，每次只用一次。 either…or, no longer, right now, try…out, thanks to, carry on, make sure, as…as, used to, be proud of 1. We are ______ children. We should learn to look after ourselves...
【简答题】Twenty years ago, when most mothers were_______ homemakers, shopping had a ________ and a social value.
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