进行可行性研究的依据是( )。 A.现场调查 B.对系统的高层次分析和设计 C.

题型:单项选择题

问题:

进行可行性研究的依据是( )。

A.现场调查
B.对系统的高层次分析和设计
C.决策者的经验
D.以上都不对

考点:计算机等级考试信息管理技术三级信息管理技术
题型:单项选择题
口算。
(1)187-176=(2)72÷36=(3)63+15=(4)16×30=(5)990÷33=
(6)65÷13=(7)808÷8=(8)240×25=(9)72×25=(10)26×25×4=
题型:单项选择题

一对表现型正常的夫妇生了一个白化病女儿和一个正常的儿子,这个儿子与一个其母为白化病的正常女子结婚,他们生一个白化病孩子的几率为[ ]

A.1/8

B.1/16

C.1/6

D.1/32

题型:单项选择题

根据课文内容填词:(共10小题,每小题0.5分,满分5分)

So why has English changed over time? 小题1:   all languages change and develop when cultures meet and  小题2:    with each other. At first the English spoken in England between about AD 450 and 1150 was very different from the English 小题3:  today. It was based more on German than the English we speak at present. Then   小题4:between about AD 800 and 1150, English became   小题5:  like German because those who ruled England spoke first  小题6:  and later French. These new settlers   小题7: the English language and especially its   小题8: . So by the 1600's Shakespeare was able to make use of a wider vocabulary than ever before. In 1620 some British   小题9:  moved to America. Later in the 18th century some British people were taken to   小题10:  too. English began to be spoken in both countries.

题型:单项选择题

晶间腐蚀会对结构件造成怎样的损害?()

A.严重降低材料的机械性能,而外表并无变化。

B.对结构件的损伤不大。

C.不会导致构件发生突然破坏。

D.严重降低材料的机械性能,发生破坏前有明显的预兆。

题型:单项选择题

肾虚头痛的症状特点是

A.头痛而眩
B.头痛且空
C.头痛而晕
D.头痛昏蒙
E.痛如锥刺

更多题库