净酚盐

计算机通信体系结构中最为关键的一层是______。

由x=0,x=5,y=︱x -3︱与y=0围成封闭图形的面积为____________

The people below are going to make a trip. After the description of these people, there is information about six tours A-F. Decide which tours would be most suitable for the people mentioned in descriptions 61-65 and then mark the correct letter (A-F) on your answer sheet. There is one extra paragraph about one tour which you do not need to use.

小题1:Victor and three of his friends would like to spend a whole weekend driving around in nice scenery and enjoying some local food.

小题2:Vanessa and Adam want to go on a comfortable trip which takes them quickly to an interesting city. Then they want to enjoy at least two days of sightseeing.

小题3:Charlie, Kathy and their three children don’t have much money, but they want a special day out this Saturday. They must be back home by 9 p.m.

小题4:Jenny is a Dutch student who is studying in Scotland．She doesn’t drive, but wants a day trip to see some beautiful scenery and spend a little time by the sea.

小题5:Kitty and her boyfriend want to experience something exciting, especially in the ocean world. They wish they would swim like a fish.

A．Amsterdam

Sail out in the evening and enjoy over 12 hours in the Netherlands, returning the following night. After a good Dutch breakfast you travel by train direct to the heart of the wonderful city of Amsterdam. The sightseeing and places to shop will make this a day to remember. Weekends only.

B．Marine Life, France

The chance to experience the oceans of the world. Children will love the observatory, with water all around them and big fish swimming above their heads! Afterwards you eat at a world-famous local restaurant before boarding the ferry at 9 pm. Not cheap, but a great day out!

C．Sea and Mountains in Northern Ireland

Explore the Northern Ireland countryside, including the amazing Moutains of Mourne and the small seaside holiday town of Newcastle. The ferry leaves the port in Scotland at 7:30 and arrives back at 22:20. Transport in Northern Ireland is by air-conditioned coach.

D．French Hypermarket Day TripWhether you want to buy or just look, you’ll love this tour. The large Darney shopping center is a shopper’s dream! You will find a lot of local goods on sale, and clothes and kitchen goods are of excellent value. Free children’s entertainment all day. Leaves at 10:00, arrives back at 19:00.

E. Belgium by Hydrofoil

A four-day trip. From England you cross to Belgium in just 100 minutes by hydrofoil! You are served with food and drinks during the crossing, then continue your journey to Brussels, or another beautiful city, on the fast Belgium railway network.

F. Ireland by Car

Once you arrive in Ireland you’re quickly on beautiful country roads, with friendly villages where you can stop for a delicious bite to eat. The special price allows you to take your car and up to five people away for 48 hours, and two nights’ hotel accommodation can be arranged for a little extra.

一只标有“2.5V  0.5W”的小灯泡，要把它接在6伏的电源上，正常发光，必须串联一个多大的电阻？

根据商标法的规定，许多标志都是不能作为商标注册或者使用，但是除此之外，还有一些情形也不能获准注册。以下哪种情况不属于此种情形

A．某食品公司以三维标志申请注册商标，但该标志是为获得技术效果而需有的商品形状

B．某电子公司就某电子商品申请注册的商标是复制、摹仿或者翻译他人未在中国注册的驰名商标，容易导致混淆的

C．某制衣公司就所生产的衬衫申请注册的商标是复制、摹仿或者翻译他人已经在中国注册的电子产品的驰名商标，误导公众，有可能致使该驰名商标注册人的利益受到损害的

D．某化妆品公司将其生产的洗面奶申请注册的商标是字母和数字的组合，该商标可以将该商品与他人的商品区分开