OA系统和电子邮件系统实现了整合，可以在OA中直接登陆自己的电子邮箱。（）

身处“天苍苍，野茫茫，风吹草低见牛羊”的草原，面对“大漠孤烟直，长河落日圆”的沙漠，领略“落霞与孤鹜齐飞，秋水共长天一色”的景象，我们会（   ）

①在内心产生美的感受

②被大自然的美丽所陶醉

③使自己的情感向丰富、健康和高雅的方向发展

④产生强烈的民族自豪感

A．①②③

B．②③④

C．①②④

D．①③④

在如图转化关系中，生成物D能使带火星的木条复燃，H能使澄清石灰水变浑浊，在反应②中，B的质量和化学性质均没有改变．

（1）图中A是______，B是______，D是______，H是______．

（2）属于化合反应的是______（填序号）．

Observe that for the programmer, as for the chef, the urgency of the patron(顾客)may govern the scheduled completion of the task, but it cannot govern the actual completion. An omelette(煎鸡蛋 ), promised in two minutes, may appear to be progressing nicely. But when it has not set in two minutes, the customer has two choices—waits or eats it raw. Software customers have had (16) choices.
Now I do not think software (17) have less inherent courage and firmness than chefs, nor than other engineering managers. But false (18) to match the patron’s desired date is much more common in our discipline than elsewhere in engineering. It is very (19) to make a vigorous, plausible, and job risking defense of an estimate that is derived by no quantitative method, supported by little data, and certified chiefly by the hunches of the managers.
Clearly two solutions are needed. We need to develop and publicize productivity figures, bug-incidence figures, estimating roles, and so on. The whole profession can only profit from (20) such data. Until estimating is on a sounder basis, individual managers will need to stiffen their backbones and defend their estimates with the assurance that their poor hunches are better than wish derived estimates.

A．easy

B．difficult

C．simple

D．painless

国务院 * * 温 * * 在2009年《政府工作报告》中指出：我们将继续从中国人民和世界各国人民的根本利益出发，共同应对风险挑战，共同分享发展机遇，努力建设持久和平、共同繁荣的和谐世界。这一外交理念，体现了（　　）

①我国的国家性质和国家利益

②世界的和平和发展形势严峻

③我国独立自主的和平外交政策

④世界经济发展很不平衡

A．①③

B．②④

C．②③

D．③④

大型沼气工程的厌氧发酵池单池的容积为多少立方米？