单选题______ such subjects, the department also taught mathematics and geography.

单选题I suppose you know. everything about that event, ______ ?

单选题The Olympic Games, ______ in 776 B.C., did not include women players until 1912. A) first playing C) to be first played B) first played D) to be first playing

单选题What would every man consciously or unconsciously like to find in his secretary.? Loyalty is the first requirement. If a man can' t trust his secretary, whom can he trust? Next, conceience. Thereis little except ones' conscience to insure that long hours are kept when necessary, things are done properly, and no loose ends are left untied. Next, we come to initiative. In fact, true initiative is the ability to know when to act on your own and when to consult.

单选题It is nice that you have someone ______ you off.

单选题A.Peoplewithproblems.B.Travelsaroundtheworld.C.BeautifulAmerica.D.Peopleingreatcities.

单选题The main purpose of this article is to ______.

单选题First of all, the police should tell the suspect that he can ______ under the law.

单选题Never ______ seen so many people cooperating in such an event.

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单选题Your proposal for payment by time draft for Order No. 1156 is acceptable to us, and we shall draw on you at 60 days' sight after the goods have been shipped.

单选题The air here is ______ I can enjoy in my mountain village. A. not so fresh as that B. so fresh as C. as fresh as what D. so fresh as what

单选题According to the passage, one of the first expected benefits from cloning technology may be in

单选题I hadn't seen him for years, but I ______ his voice on the telephone. A．detected B．realized C．recognized D．discovered

单选题A ______ to this Problem is expected to be found before long.

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单选题In the meantime, the question facing business is whether such research is ______ the costs.

单选题This practice book is intended for foreign engineers or students of engineering who have already mastered the elements of English, and who now want to use their knowledge of the language to read books on their own subjects. Readers should understand, however, that the purpose of the book is to teach language, not to teach engineering. The language in which scientific and technical facts are expressed is certainly not a different language from that of everyday life, but all the same it presents the foreign students with a number of special problems. The most obvious and the most widely recognized of these problems is the vocabulary. Much more difficult are the semi-scientific or semi-technical words, which have a whole range of meanings and are frequently used idiomatically. One of the aims of this practice book is to present as many of these words as possible, and as often as possible, words such as work and paint and load and feed and force. Words like these look harmless, but they can cause a lot of trouble to the students. But more than anything else, I have tried to describe the technical statement, that is, the completed sentence rather than the individual word. Many of the structures illustrated in the book are found also in ordinary language though not so commonly. But they are essential to the expression of technical facts and ideas — at least for the present.

单选题Mr. Stone ______ the money order, otherwise he would have written back before now.