lf a park visitor is hurt or in danger, cell phones make it easier to get help.

In order to prevent stress from being set up in the metal, expansion joints are fitted which _____ the stress by allowing the pipe to expand or contract freely.

The author mentions businesses in Paragraph 5 in order to

In order to make learners master this skill easily, you should introduce clearly _______they need to know.

During loading or discharging, the tallymen must make contact with（）on duty so as to solve problems in time.

During loading or discharging，the tallymen must make contact with（）on duty so as to solve problems in time.

In order to detect rot in manila lines，you should（）.

In order to make students gain high marks in the coming examination, teachers have to ______.

In order to make proper reservations， will you send your acceptance to the attention ofProfessor Chen（） a week before that day？ 

In order to detect rot in manila lines,you should（）.

Practice 10　　(1) Advertisement can be thought of “as the making known in order to buy or sell goods or services.” Advertisement aims to increase people’s awareness and arouse interest. It tries to inform and to persuade. (2) There can be no doubt that the growth in advertisement is one of the most striking features of the western world in this century.

In order to properly remove air from the casing of a centrifugal pump when starting, the pump should have a （）.