题目内容
某省重点工程项目计划于2009年12月28日开工，由于工程复杂，技术难度高，一般施工队伍难以胜任，业主自行决定采取邀请招标方式。在2008年9月8日业主向通过资格预审的A、B、C、D、E五家施工承包企业发出了投标邀请书。该五家企业均接受了邀请，并于规定时间9月20日～9月22日购买了招标文件。招标文件中规定，10月18日下午4时是招标文件规定的投标截止时间，11月10日发出中标通知书。 在投标截止时间前，A、B、D、E四家企业提交了投标文件，但C企业于10月18日下午5日才送达，原因是路途堵车。10月21日下午由当地招标投标监督管理办公室主持进行了公开开标。评标时发现E企业投标文件虽无法定代表人签字和委托人授权书，但投标文件均已有项目经理签字并加盖了单位公章。 问题 C企业和E企业的投标文件是否有效分别说明理由。
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In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. Which of the following is the best description of the proprietary colony
某省重点工程项目计划于2009年12月28日开工，由于工程复杂，技术难度高，一般施工队伍难以胜任，业主自行决定采取邀请招标方式。在2008年9月8日业主向通过资格预审的A、B、C、D、E五家施工承包企业发出了投标邀请书。该五家企业均接受了邀请，并于规定时间9月20日～9月22日购买了招标文件。招标文件中规定，10月18日下午4时是招标文件规定的投标截止时间，11月10日发出中标通知书。 在投标截止时间前，A、B、D、E四家企业提交了投标文件，但C企业于10月18日下午5日才送达，原因是路途堵车。10月21日下午由当地招标投标监督管理办公室主持进行了公开开标。评标时发现E企业投标文件虽无法定代表人签字和委托人授权书，但投标文件均已有项目经理签字并加盖了单位公章。 问题 请指出开标工作的不妥之处，说明理由。
下面fun函数的功能是将形参x的值转换成二进制数，所得二进制数的每一位数放在数组中返回，二进制数的最低位放在下标为0的元素中，其他依此类推。请填空。 Fun(int x,int b[]) int k=0,r; do r=x%2; ______=r; x/=2; while(x);
Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on your ANSWER SHEET. The effect of the baby boom on the schools helped to make possible a shift in thinking about the role of public education in the 1920’s. In the 1920’s, but especially in the Depression of the 1930’s, the United States experienced a (31) birth rate. Then with the prosperity (32) by the Second World War and the economic boom that followed, young people married and (33) households earlier and began to (34) larger families than had their (35) during the Depression. Birth rates rose to 102 per thousand in 1946, 106.2 in 1950, and 118 in 1955. (36) economics was probably the most important (37) , it is not the only explanation for the baby boom. The increased value placed (38) the idea of the family also helps to (39) this rise in birth rates. The baby boomers began streaming (40) the first grade by the mid-1940s and became a (41) by 1950. The public school system suddenly found itself (42) The wartime economy meant that few new schools were built between 1940 and 1945. (43) , large numbers of teachers left their profession during that period for better-paid jobs elsewhere. (44) , in the 1950s, the baby boom hit an antiquated and (45) school system. Consequently, the custodial rhetoric of the1930s no longer made (46) ; keeping youths aged sixteen and older out of the labor market by keeping them in school could no longer be a high (47) for an institution unable to find space and staff to teach younger children. With the baby boom, the focus of educators (48) turned toward the lower grades and back to basic academic skills and (49) The system no longer had much (50) in offering nontraditional, new, and extra services to the older youths.
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