当某些检索词词干相同、词义相近,但词尾有变化时,可采用的表示方法是()A、逻辑“与”

题型:单项选择题

问题:

当某些检索词词干相同、词义相近,但词尾有变化时,可采用的表示方法是()

A、逻辑“与”

B、截词

C、位置算符

D、字段限定

考点:图书馆、情报与文献学文献检索文献检索题库
题型:单项选择题

阅读下面短文,用括号内所给动词的适当形式填空(必要时可加情态动词或助动词)。

      Almost every child in cities has the chance to go to school, but not all children in the villages are so lucky.

There is a girl (1) ______ (call) Xiao Lian, she is ten years old and lives in a small village. When she was seven,

she (2) ______ (want) to go to school. But she could not, because her family was too poor (3) ______ (afford)

the school for her, so her parents had to keep her at home. Instead of (4) ______ (study). Xiao Lian looked after

her brother and (5) ______ (work) in the fields every day. Then Hope Project heard about Xiao Lian. It agreed to

help her to go to school. Her wish of study came true and now she (6) ______ (study) in school. 

      Unluckily there are many thousands of children who can not go to school. You can join in Hope Project and

help these children. You know all the good work (7) ______ (need) money. Hope Project needs your help. If you

(8) ______ (give) Hope Project¥300 each year, it can pay for one child to go to school for a whole year. With

more money, Hope Project (9) ______ (build) new schools, buy good desks, chairs, blackboards and books.

Let's (10) ______ (help) the children together and give them a chance have a good start in life.

题型:单项选择题

会计资料的真实性是指()。

A.会计资料所反映的内容和结果应当同单位实际发生的经济业务的内容及其结果相一致

B.构成会计资料的各项要素必须齐全,如实、全面地记录和反映单位的经济活动情况

C.会计资料所反映的结果可以同单位实际发生的经济业务的结果相一致

D.会计资料所反映的内容不一定同单位实际发生的经济业务完全相一致

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玻璃棒是化学实验中的常用仪器,下列实验需要用到玻璃棒的正确组合是①测溶液pH②配制500mL 0.1mol/L NaC1溶液③中和和滴定④焰色反应⑤过滤⑥蒸馏             (   )

A.①②④⑤

B.②③④

C.①②⑤

D.①②⑤⑥

题型:单项选择题

关于两性霉素B的叙述,不正确的是()。

A.对细菌无效

B.广谱抗真菌药

C.对深部真菌有效

D.口服用于肠道真菌感染

E.对深部真菌无效

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远期外汇交易的最大优点在于( )。

A.可以完成两国货币之间的交易

B.可以获得一定的期权费

C.可以用来套期保值和投机

D.能够对冲汇率在未来下降的风险

E.能够对冲汇率在未来上升的风险

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