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听力原文：经营风险是指证券公司在业务经营中由于经营水平的差异，可能导致对市场变化把握不准、决策或操作失误而造成经营上的损失。证券交易的基本风险是市场风险。
经营风险是证券交易的基本风险。()
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听力原文：债券交易是以债券为对象进行的流通转让活动。债券主要有三大类：政府债券(即国债)、公司债券和金融债券。这三种都是债券市场上的交易品种，并非只有国债。
只有以国债为对象进行的流通转让活动，才可以称为债券交易。()
投资者作为委托人，必须履行的义务包括（)。A．如实填写开户申请书和委托单，并接受经纪商的审查B．缴投资者作为委托人，必须履行的义务包括()。
Britain is separated from the rest of Europe by the English Channel in the ______ and the
Highways in the US
The United States is well-known for its network of major highways designed to help a driver get from one place to another in the shortest possible time. (51) these wide modern roads are generally smooth and well maintained, with (52) sharp curves and many straight sections, a direct route is not always the most (53) one. Large highways often pass (54) scenic areas and interesting small towns. Furthermore, these highways generally (55) large urban centers which means that they become crowded with (56) traffic during rush hours, when the "fast, direct" way becomes a very slow route. However, there is (57) always an-other route to take if you are not in a hurry. Not far from the (58) new "superhighways", there are often older, (59) heavily traveled roads which go though the countryside. (60) of these are good two lane roads; others are uneven roads (61) through the country. These secondary routes may go up steep slopes along hilly (62) or down frightening hillsides to towns (63) in deep valleys. Though these are less direct routes, longer and slower, they generally go to places (64) the air is clean and the scenery is beautiful, and the driver may have a chance to get a fresh, clean (65) of the world.
(51)
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