监护主要有（）。 A.法定监护 B.指定监护 C.遗嘱监护 D.自愿监护 E.特别监

根据规定，保证收益型理财计划的起点金额，外币应在（）美元（或等值外币）以上。

A.6000

B.5000

C.4000

D.3000

甲在闹市中一栋楼房的九层居住，一天不小心将大花瓶打碎，扔到垃圾箱又觉得麻烦，随手将碎片扔出窗外，碎片恰好砸在行人于某的头上，致于某重伤，经抢救无效死亡。甲的行为______。

A．构成(间接)故意杀人罪

B．属于意外事件

C．构成过失致人死亡罪

D．构成过失重伤致人死亡罪

现有五种可溶性物质A、B、C、D、E，它们所含的阴、阳离子互不相同，分别含有五种阳离子Na⁺、Al³⁺、Mg²⁺、Ba²⁺、Fe³⁺和五种阴离子Cl^-、OH^-、NO₃^-、CO₃^2-、X中的一种。

（1）某同学通过分析比较，认为无需检验就可判断其中必有的两种物质是_______和_____。（填化学式）

（2）为了确定X，现将（1）中的两种物质记为A和B，当C与B的溶液混合时，产生红褐色沉淀和无色无味气体；当C与A的溶液混合时产生棕色沉淀，向该沉淀中滴入稀硝酸，沉淀部分溶解，最后留有白色沉淀不再溶解。则：

①X为_________。

A．SO₃^2-    B．SO₄^2-      C．CH₃COO^-     D．SiO₃^2-  

②A中的化学键类型为_________

③将0.02mol的A与0.01mol的C同时溶解在足量的蒸馏水中，充分反应后，最终所得沉淀的质量为____________（精确到0.1g）。

④利用上述已经确定的物质，可以检验出D、E中的阳离子。请简述实验操作步骤、现象及结论______________

（3）将Cu投入到装有D溶液的试管中，Cu不溶解；再滴加稀硫酸，Cu逐渐溶解，管口附近有红棕色气体出现。则物质D一定含有上述离子中的__________（填相应的离子符号）。有关反应的离子方程式为_______________________

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 (71) choices．

Now I do not think software (72) have less inherent courage and firmness than chefs，nor than other engineering managers．But false (73) to match the patron’s desired date is much more common in our discipline than elsewhere in engineering．It is very (74) 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 rules，and so on．The whole profession can only profit from (75) 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．

（71）处填（）。

A．no

B．the same

C．other

D．lots of

制备石英光纤有多种方法，其中等离子体化学气相沉积法的缩写是（）

A.PCVD

B.CVD

C.MCVD

D.AVD