问题
单项选择题
下列行为中，表明投标人已参与投标竞争的是（）。
A．资格预审通过
B．购买招标文件
C．编写投标文件
D．正式提出合同要约
答案
参考答案：D
解析：D本题考核的是投标人具备的条件。潜在投标人按照招标文件的约定，在规定的时间和地点递交投标文件，对订立合同正式提出要约。潜在投标人一旦正式递交了投标文件，就成为投标人。
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下列行为中，表明投标人已参与投标竞争的是（）。
A．资格预审通过
B．购买招标文件
C．编写投标文件
D．正式提出合同要约
参考答案：D
解析：D本题考核的是投标人具备的条件。潜在投标人按照招标文件的约定，在规定的时间和地点递交投标文件，对订立合同正式提出要约。潜在投标人一旦正式递交了投标文件，就成为投标人。
小题3: used cards with holes, it could produce an answer quicker than any person. Later, Alan Turning wrote a book about how a computer could be made 小题4: work as a “universal machine”. From then on, the computer grew rapidly both in size and in brainpower. By the 1940s, it had grown as large as a room and this reality worried the designers. 小题5: , with its memory 小题6: (improve), the computer was ma
de smaller. First, the memory was stored in tubes, then on transistors and later on very small chips. As a result, the shape of the computer 小题7: (total) changed from a large machine to a PC and then a laptop. Connected by 小题8: network, the computer was able to share its knowledge 小题9: others through the World Wide Web. Since the 1970s many new applications of the computer 小题10: (find) in communication, finance, trade and many other areas. The computer has become a devoted friend and helper of the human race.