单选题在Windows 7中，文件名可以包含空格和英文句号等。

单选题诗句“桃之夭夭，灼灼其华”出自于( )

单选题在TCP／IP协议中，远程登录使用的是____________协议。

单选题控制过程会因标准不合理而被人们抵制，以下不是标准不合理的原因的是 ( )

单选题电影与电视属于

单选题函数在点(2，2)处的全微分dx为()

单选题A dolphin six ______ length can move as fast as many ships.

单选题我国提出的“三金”工程中不包括 ( )

单选题下列属于常规型技术的是______

单选题“五四”以来，最擅长用“自叙传”方式写作的是 ( )

单选题下列作品属于莎士比亚喜剧的是()

单选题I was amazed at ______ he behaved.

单选题组织成员士气高昂，具有比较一致的满意度，沟通渠道差不多。具有这种特定的正式沟通形态是 ( )

单选题He did it ______ it took me.

单选题以下属于学科中心课程的是 ( )

单选题下列声音文件格式中，______是波形声音文件格式。

单选题Wouldn' t it be great if you could just look up at the sky and read the weather forecast right away? Well, you can. The forecast is written in clouds. If you can read that writing, you can tell something about the atmosphere. With some practice, you can become a pretty good weather forecaster. Who knows, you might even do as well as meteorologists. Meteorologists use much more information than just the appearance of the clouds to make their forecast. They collect data from all over the world. Then they put it into powerful, high-speed computers. This does give the meteorologists an advantage, because they can track weather patterns as they move from west to east across the country. But you have an advantage, too. You can look at the sky and get your data directly. A meteorologist uses a computer forecast that' s several hours old to make a local forecast. What are you seeing when you look at a cloud? "A picture of moisture is doing in the atmosphere," says meteorologist Peter Leavitt. There' s moisture throughout the atmosphere. Most of the time you don' t see it, because it' s in the form of an invisible gas called water vapor. Sometimes, the temperature of the air gets cold enough to cause the water vapor to change to liquid water. It' s called condensation , and we see it happen all the time ( for example, when humid air from the shower hits the cold glasses of a mirror). When enough water vapor condenses, droplets(小水滴) come in the air. These droplets scatter light. A cloud is seen. Watching clouds over a day or two tells you a lot more than a single cloud about the weather to come. Changes in clouds show changes in the atmosphere. You should begin to notice patterns. Certain clouds, following each other in order, can signal an approaching storm. But don' t take our word for it: see for yourself.

单选题和通信网络相比，计算机网络最本质的功能是______

单选题下列关于白居易说法不正确的是( )

单选题根据美国学者波特的研究，一个行业内部的竞争状态取决于 ( )