我国商品质量监督的种类分为（）种。 A.2 B.3 C.4 D.5

《FIDIC合同条件》规定，尽管暂列金额计入合同价格中，但其使用却归( )控制。

A．工程师

B．业主

C．指定分包

D．商承包商

2011年10月31日是“世界70亿人口日”。我国实行计划生育30多年来，少生4亿人，使“世界70亿人口日”推迟5年到来。我国占世界人口的比重，从改革开放初期的22%下降至19%。这表明

①世界面临严峻的人口形势，必须走可持续发展之路

②我国计划生育工作取得显著成效

③我国已不用再坚持计划生育的基本国策

④我国依然面临严峻的人口形势

A．①②③

B．①②④

C．①③④

D．②③④

什么是离心泵的允许汽蚀余量？

People are indulging in an illusion whenever they find themselves explaining at a cocktail (鸡尾酒) party, say, that the are "in computers", or " in telecommunications", or "in electronic funds transfer". The implication is that they are part of the high-tech world. Just between us, they usually aren’t. The researchers who made fundamental breakthroughs in those areas are in a high-tech business. The rest of us are (121) of their work. We use computers and other new technology components to develop our products or to organize our affairs. Because we go about this work in teams and projects and other tightly knit working group (紧密联系在一起的工作小组), we are mostly in the human communication business. Our successes stem from good human interactions by all participants in the effort, and our failures stem from poor human interactions.
The main reason we tend to focus on the (122) rather than the human side of work is not because it’s more (123) , but because it’s easier to do. Getting the new disk drive installed is positively trivial compared to figurine out why Horace is in a blue funk (恐惧) or why Susan is dissatisfied with the company aver only a few months. Human interactions are complicated and never very crisp (干脆的，干净利落的) and clean in their effects, but they matter more than any other aspect of the work.
If you find yourself concentrating on the (124) rather than the (125) . you’re like the vaudeville character (杂耍人物) who loses his Keys on a dark street and looks for them on the adjacent street because, as he explains, "The light is better there!\

A．creators

B．innovators

C．appliers

D．inventors

目前我国不承认总部设在华盛顿的“世界服务机关”颁发的“世界护照”。