题目内容

Mary regretted ____ to John’s birthday party last Sunday.

A. not going B. not to go C. not having been going D. not to be going

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Passage 2 Questions 6 to 10 are based on the following passage:
The Chinese have used a method called acupuncture (针灸) to perform. operations for about 4, 000 years without putting the patient to sleep, a involves placing flexible needles into certain parts of the body. The needles are available in a number of stores in China and anyone may buy them.
To learn how to use the needles takes about one month of training. But be skillful requires greater time. The person who performs the acupuncture knows how to put in the needles so the needles themselves are painful. This person also knows where to place the needles so the patient feels no pain in the area where the operation is to be performed. A particular operation might require 25 or more needles placed in various parts of the body. But now this operation requires only 3 or 4 needles.
Today, the Chinese doctors are trying to learn more about acupuncture. They are trying to develop a convincing theory to explain how the needles work in preventing pain, or why a needle in the wrist, for example, would prevent the pain in the area of the mouth.
A patient who needs an operation is given a choice between having acupuncture or having one of the chemicals used for putting him to sleep. It has been estimated that over half of the patients choose acupuncture because there is no sickness after the operation because the chemical may make the patient sick for a few hours or a day.
第6题：Acupuncture is _________

A. a medical operation B. a medical needle C. a medical technique D. a medical machine

施工机械台班单价按有关规定由七项费用组成，这些费用按其性质分为第一类费用和第二类费用。以下各项中，属于第二类费用的是（）。

在签订合同前，中标人应按照招标文件规定的担保形式、金额和履约担保格式向招标人提交履约担保，其中履约担保的金额一般约定为签订合同价的（）。

货物投标文件的一般内容组成不包括（）。