紫外线灯管充有一种气体,这种气体在光谱中为蓝色,它较易于电离,使灯管点燃,且不会干扰 发布时间:2017-05-25 07:46 │ 来源:www.tikuol.com 题型:单项选择题 A1/A2型题 问题: 紫外线灯管充有一种气体,这种气体在光谱中为蓝色,它较易于电离,使灯管点燃,且不会干扰紫外线,这种气体名叫()A.氮气B.氧气C.氩气D.氦气E.氢气
题型:单项选择题 A1/A2型题 关于混凝土模板及支架拆除,正确的说法是( )。A.梁侧模拆除时对混凝土强度无任何要求B.拆模时应先拆除承重模板,后拆除非承重模板C.后张法预应力构件的侧模应在预应力钢筋张拉前拆除D.同种构件的底模拆除时对混凝土的强度要求相同 查看答案
题型:单项选择题 A1/A2型题 The people below all want to go on a short trip and there are descriptions of six trips which a ferry company is offering.1. Ray and three of his friends would like to spend a whole weekend driving around in nice scenery and enjoying some local food. 2. Phil 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. 3. Mike, 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. 4. Kirsten 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. 5. Clare and Robert want to enjoy some good food, but would also like to give their two young children a day to remember. They don’t mind if they spend a lot of money. AMarine Life, FranceThe 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 p.m.Not cheap, but a great day out!BAmsterdamerSail 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.CIreland by CarOnce 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 accom- modation can be arranged for a little extra. DFrench 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 great number of local goods on sale, and clothes and kitchen goods are excellent value. Free children’s entertainment all day. Leaves 10:00, back at 19:00.EBelgium by HydrofoilA four-day trip. From England you cross to Belgium in just 100 minutes by hydrofoil! You are served food and drinks during the crossing, then continue your journey to Brussels, or another beautiful city, on the fast Belgian railway network.FSea and Mountains inNorthern IrelandExplore the Northern Ireland countryside, including the amazing Mountains of Mourne and the small seaside holiday town of Newcastle. They ferry leaves the port in Scotland at 7:30 and arrives back at 22:20. Transport in Northern Ireland is by air-conditioned coach. 查看答案
题型:单项选择题 A1/A2型题 甲企业于2001年1月1日从乙银行贷款1000万元,期限为9个月,但双方在合同中未约定支付利息的期限,在根据《合同法》有关规定仍不能确定的情况下,甲企业应在返还借款时一并支付利息。 ( ) 查看答案