题目内容
（请给出正确答案）
Over the past few years medical researchers______for a means of controlling the virus.
A．have searching
B．are searching
C．have been searching
D．search
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更多“Over the past few years medica…”相关的问题
In the past few days we have ____ the importance of further research in this field.
A. set aside
B. pulled into
C. talked over
D. carried out
A、position
B、stranger
C、applications
D、character
It can be concluded that ______.
A．raising the world's temperature only a few degrees would not do much harm to life on earth
B．lowering the world's temperature merely a few degrees would lead many major farming areas to disaster
C．almost no temperature variations have occurred over the past decade
D．the world's temperature will remain constant in the years to come
从下面提供的答案中选出应填入下列英文语句中______内的正确答案。
When most people refer to multimedia, they generally mean the combination of two or more continuous media, usually with some user(1). In practice, the two media are normally audio and video, this is,(2)plus moving(3).
It should be obvious by now that transmitting multimedia material in uncompressed form is completely out of the(4). The only hope is that massive compression is possible. Fortunately, a large body of research over the past few decades has led to many compression techniques and algorithms that make multimedia transmission(5)．
This passage is taken from Sons and Lovers. Who is the author of the novel and what are his major works？
Today Siena is famous for keeping its“old face.”For example,its city walls,which helped keep the city safe in the past,are hundreds of years old now and look almost the same as before.Also,many old buildings are seen at the Piazza del Campo,the most important meeting place of the city.Few things have really changed in this center of public life for hundreds of years.Now people still go to the open space for sharing news,shopping or playing sports.There is one more thing that helps keep Siena’s old face: cars cannot enter the city most of the time.
True,Siena is old,but it is beautifully old.People are welcome to visit this beautiful city and walk into the past.
1、The old city,Siena,began more than 2,900 years ago.
2、Siena is famous for having the first bank of the world today.
3、People in Siena have protected the old city walls very well.
4、Few old buildings can be found at the Piazza del Campo.
5、Most of the time cars are not allowed to enter Siena.
Which of the following is true about Oregon's adoption record law？
A．Any adoptee over 21 years old who has born in Oregon can apply for a birth certificate.
B．Birth mothers can choose not to be contacted.
C．It was passed by voters instead of lawmakers.
D．All of the above.
