单选题 Questions17-19 are based on the recording you have just heard.

单选题Awareness of their identity means______.

单选题The technology supplied by Motorola is based on ______.

单选题The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with the portable computer in business class. In the last 15 years, pilots have reported well over 100 incidents that could have been caused by electromagnetic interference. The source of this interference remains unconfirmed, but increasingly, experts are pointing the blame at portable electronic devices such as portable computers, radio and cassette players and mobile telephones. RTCA, an organization which advises the aviation (航空) industry, has recommended that all airlines ban (禁止) such devices from being used during "critical" stages of flight, particularly take-off and landing. Some experts have gone further, calling for a total ban during all flights. Currently, rules on using these devices are left up to individual airlines. And although some airlines prohibit passengers from using such equipment during take-off and landing, most are reluctant to enforce a total ban, given that many passengers want to work during flights. The difficulty is predicting how electromagnetic fields might affect an aircraft's computers. Experts know that portable devices emit radiation which affects those wavelengths which aircraft use for navigation and communication. But, because they have not been able to reproduce these effects in a laboratory, they have no way of knowing whether the interference might be dangerous or not. The fact that aircraft may be vulnerable (易受损的) to interference raises the risk that terrorists may use radio system in order to damage navigation equipment. As worrying, though, is the passenger who can't hear the instructions to turn off his radio because the music's too loud.

单选题It is said that one hundred dollars can hardly ______ one night at a top hotel in Shanghai.

单选题You have made a very ______ decision. It"s probably the best thing you can do at this moment.

单选题The birth rate in a city ______ to fall as its gross domestic product (GDP) rises steadily.

单选题Radio, television and press are______of conveying news and information.

单选题You may recall that Mr．John Nathan, when he was in Beijing, ______ the question of our representation as your sole agent for Chinese embroideries in Sweden. A．bring out B．bring up C．bring about D．bring in

单选题It's easier to dismiss reports of low employee morale than face the facts and act______.

单选题This bird's large wings______ it to fly very fast.

单选题 微博(microblog)是一种以博客形式存在的广播媒介。通过微博，人们不仅能够快速获取并分享大量的信息，还可以与其他网民交流。美国的推特(Twitter)是最早也是最著名的微博。2009年，“新浪微博”横空出世，成为中国第一个微博网站。现在，至少70%的网民(netizen)是微博用户。微博已经成为实时新闻更新的重要来源，以至于眼下的时代被称为“微博时代”。

单选题Business men (quite generally) look upon (rising prices) as (a symptom) of (prosperities).

单选题I don"t think she"ll be upset, but I will see her in case ______.

单选题Scholastic thinkers held a wide variety of doctrines in both philosophy and theology, the study of religion. What gives unity to the whole Scholastic movement, the academic practice in Europe from the 9th to the 17th centuries, are the common aims, attitudes, and methods generally accepted by all its members. The chief concern of the Scholastics was net to discover new facts but to integrate the knowledge already acquired separately by Greek reasoning and Christian revelation. This concern is one of the most characteristic differences between Scholasticism and modern thought since the Renaissance. The basic aim of the Scholastics determined certain common attitudes, the most important of which was their conviction of the fundamental harmony between reason and revelation. The Scholastics maintained that because the same God was the source of both types of knowledge and truth was one of his chief attributes, he could not contradict himself in these two ways of speaking. Any apparent opposition between revelation and reason could be traced either to an incorrect use of reason or to an inaccurate interpretation of the words of revelation. Because the Scholastics believed that revelation was the direct teaching of God, it possessed for them a higher degree of truth and certainty than did natural reason. In apparent conflicts between religious faith and philosophic reasoning, faith was thus always the supreme arbiter; the theologian's decision overruled that of the philosopher. After the early 13th century, Scholastic thought emphasized more the independence of philosophy within its own domain. Nonetheless, throughout the Scholastic period, philosophy was called the servant of theology, not only because the truth of philosophy was subordinated to that of theology, but also because the theologian used philosophy to understand and explain revelation. This attitude of Scholasticism stands in sharp contrast to the so-called double-truth theory of the Spanish Arab philosopher and physician Averroes. His theory assumed that truth was accessible to both philosophy and Islamic theology but that only philosophy could attain it perfectly. The so-called truths of theology served, hence, as imperfect imaginative expressions for the common people of the authentic truth accessible only to philosophy. Averroe's maintained that philosophic truth could even contradict, at least verbally, the teachings of Islamic theology. As a result of their belief in the harmony between faith and reason, the Scholastics attempted to determine the precise scope and competence of each of these faculties. Many early Scholastics, such as the Italian ecclesiastic and philosopher St. Anselm, did not clearly distinguish the two and were overconfident that reason could prove certain doctrines of revelation. Later, at the height of the mature period of Scholasticism, the Italian theologian and philosopher St. Thomas Aquinas worked out a balance between reason and revelation.

单选题The poor countries are extremely ______ to international economic fluctuations.

单选题She ______ in the feet on her way home from work.

单选题Some old people don't like pop songs because they can't ______ so much noise.

单选题What do you think ______ a taxi to the airport?