It has been decided that a collision due to any cause other than the negligence of the Shipowner or his servants is within the scope of（）.

The statement: “It never rains but it pours” is used to introduce ______.

Believe it or not, when first (introduce) ____ to Europe, tomato was thought to be poisonous.

It is enough to introduce a range of different activities into a lesson to keep the students interested in learning English.（）

Practice 2　　● Recently your company is planning to bid for hosting an exhibition and now the manager of your company has asked you to write a letter to the organizing committee to introduce your company to them.　　● Write a letter to introduce the details about your company.　　● introducing the department structure and service,　　● introducing previous exhibitions you have hosted,　　● expressing your confidence in the success if you are permitted to host it.

Practice 3　　A newspaper is much more than a business; it is an institution. It reflects and influences the life of a community; it may affect even wider destinies.　　It is, in its way, an instrument of government. It plays on the minds and consciences of man. It may educate, stimulate, assist, or it may do the opposite. It has, therefore, a moral as well as a material existence, and its character and influence are in the main determined by the balance of these two factors. It may make profit or power its first object, or it may conceive itself as fulfilling a higher and more exacting function.　　Character is a subtle affaire, and has many shades and sides. It is not a thing to be much talked about, but rather to be felt. It is the slow deposit of past actions and ideas.　　At the perils of its soul, a newspaper must see that the news it supplies is not tainted. Neither in what it gives, nor in what it does not give, nor in the mode of presentation, must the unclouded face of truth suffer wrong. Comment is free, but facts are sacred. “Propaganda,” so called, by this means is hateful. The voice of opponents no less than that of friends has a right to be heard. Comment also is justly subject to a self-imposed restraint. It is well to be frank; it is even better to be fair. This is an ideal. Achievement in such matters is hardly given to man. Perhaps none of us can attain to it in the desirable measure. We can but try, ask pardon for shortcomings, and there leave the matter.　　One of the virtues, perhaps the chief virtue, of a newspaper is its independence. Whatever its position or character, it should have a soul of its own.　　That is the path of self-respect—it is also the path of success. And what a work it is! How multiform, how responsive to every need—and every incident of life! What illimitable possibilities of achievement and of excellence!　　To the man, whatever his place on the paper, nothing should satisfy short of the best. It is here that ability counts and that character counts, and it is on these that a newspaper, if it is to be worthy of its power and duty, must rely.

● One feature of （74） is that it is possible to arrange for a singlemessage to be sent to a large number of other users simultaneously.（74）

The explosive range of a mixture of flammable vapors is specified as a percentage of （）.

For each blank，choose the best answer from the four choices and write down on the answer sheet．(66) is a protocol that a host uses to inform. a router when it joins or leaves an Internet multicast group．(67) is an error detection code that most data communication networks use．(68) is an interior gateway protocol that uses a distance vector algorithm to propagate routing information．(69) is a transfer mode in which all types of information are organized into fixed form. cells on an asynchronous or non -periodic basis over a range of media.(70) is an identifier of a web page.

If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to （）the engine.

When it comes to creating pooled WWN objects， it is important to understand that a Cisco UCS WWN pool can include only WWNNs or WWPNs from which value of ranges？（）

●A (68) is a feature of the system or adescription of something the system is capable of doing in order to fulfill the system's purpose.