1. It is worthwhile taking the trouble to help to keep babies clean, healthy and f_____ from sickness.

2 In the past few years, Mr. Collins has e_______ his small business into a big company.

3. Thanks to a sense of h______, she is very popular with her new classmates.

4. It rained; t________ the football match was put off.

5. Drivers are warned to slow down when a_______ the crossroads.

下列关于资格预审的叙述，错误的是( )。

A．可以避免不合格投标人浪费不必要的投标费用

B．可缩短评标时间

C．适用于技术难度较大，且潜在投标人数量较多的招标项目

D．有利于增强投标的竞争性