（）是意大利文艺复兴建筑开始的标志。

[问答题]Practice 2　　Henry Ford did not invent the automobile, but he was the first man to mass-produce it, and this made it available to the ordinary man. Many automobiles were being built by the hand at the turn of the century and were much too expensive for all but the wealthy. In 1903 Henry Ford's first mass-produced Model T cars cost $850. By the early 1920s he was able to reduce the price, to $350. Between 1903 and 1927 Ford manufactured 15 million Model T Fords and earned a profit of $700 million. In 1927 he produced his sedan Model A, which was much more comfortable than the open, windswept Model T.　　Henry Ford was himself a born mechanic and could build a car with his own hands. So he respected his workers and treated them well. In 1914, when the basic wage for an industrial worker in Detroit was $11 a week, Ford announced that he would pay his Workers $5 a day. Ford believed in the dignity of work, and did not wish his men to become underpaid robots. He also built them a special town on the outskirts of the city.

[多选题]供应商一般来讲可以分为（）。

[单选题]各种扫描程序都属于（）

[单选题]现行广西定额水利建筑工程概预算定额中，“合金钻头”是指下列那种钻孔设备使用的钻头（）

[判断题]在放电过程中，电解液相对密度是升高的。

[判断题]发酵酒含有较多的糖类和B族维生素，故营养价值比蒸馏酒好。

[单选题]跆拳道的战术是以（）为主。

[单选题]天狼星位于（）。

[单选题]英国一项研究发现，人只要在每餐饭前半小时喝一杯500毫升的水，并坚持3个月，体重就能减轻2至4公斤，研究团队邀请了84位超重的成人，随机分成2租，其中41位被要求在餐前喝500毫升水，另外43位则照常生活，3个月后，团队发现三餐前喝水的人，平均体重下降了4.3公斤：而餐前没喝水的人，平均体重只下降了0.81公斤，研究人员说。没有喝水的那组人，“平均运动量”比餐前饮水的人更高，这说明餐前喝适当的水真能减肥。    下列哪项如果为真，最能支持上述结论？

[多选题]胆结石术后，取半卧位的目的是（　）