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问题 单项选择题

投资者购买可转换债券，表明投资者可在一定时期内将其转换为（）

A.收益较高的新发行债券

B.普通股

C.优先股

D.其他有价证券

答案

参考答案：B

解析：可转换债券是指在一定时期内，可以按规定的价格或一定比例，由持有人自由地选择转换为普通股的债券。

单项选择题

过失犯罪是指应当预见自已的行为可能发生危害社会的结果，因为疏忽大意而没有预见，或者已经预见而轻信能够避免，以致发生这种结果。下列不属于过失犯罪的是：

A．某人在遭到歹徒袭击时奋起反抗，顺手捡起一块石头，却不料将对方打死了

B．甲、乙两人素有仇怨，一次二人因口角争执进而发生武斗，甲被乙所伤

C．某电影放映员在不知麻袋中为何物的情况下帮人将其放在火炉旁，造成胶片自燃

D．汽车司机发现人行道上有几个人，但都避开汽车的通道行走，便没有减速，不料一人突然冲上行车道被车撞死了
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填空题


Throughout history has (1) changed his physical environment in order to improve his (2) of life. With the tools of technology he has (3) many physical features of the earth. He has (4) woodlands and prairies into farms and made lakes and reservoirs (5) of rivers for irrigation purposes or hydroelectric (6) . Man has also modified the face of the earth by (7) marshes and cutting through mountains to (8) roads and railways.
However, man’s (9) to the physical environment have not always had beneficial results. Today, (10) of the air and water is an increasing danger to the health of the (11) . Each day thousands of tons of gases come out of the exhausts of motor vehicles. (12) from factories pollutes the air of industrialized areas and the surrounding (13) of the countryside. The pollution of water is equally harmful. The whole ecological (14) of the sea is being changed and (15) wastes have already made many rivers lifeless.
Now (16) protection is more pressing than ever before. As we know, massive destruction of the environment has brought about (17) effects and even poses a great (18) to man’s existence. Indifference to these problems will mean committing suicide. Therefore, effective (19) should be taken and laws passed to (20) the environment. Otherwise, man is certain to suffer from the serious consequences caused by this lack of care for his living surroundings.
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