（ ）The purpose of the three ads is to __________.

A．sell these books to the children

B．help children learn English

C．help children learn about nature

D．use a dictionary to pronounce correctly

[单选题]（ ）According to the ads, the three books are for __________.A．the oldB．parentsC．childrenD．men

[填空题] 200MW机组投入ADS方式前，必须投入（）才能投入ADS｡

[单选题]The purpose of the writing is to ______.A． promote scenic spots in Canada B. advertise for the sports in BanffC． introduce tourist activities in Banff D. describe breathtaking views in Banff

[单选题]The purpose of the memo is toA．attract students’interest in the programmeB．require the parents to select a sport for their chinldC．help the staff explain the programme to the parentsD．remind teachers and lifeguards to be present on time

[单选题]ADS-B是一种监视技术，ADS-B设备即为：（）A . 波段式自动检测系统B . 广播式自动相关监视系统C . 平衡式主动探测系统D . 通播式自动探测系统

[单选题]The main purpose of the text is to _______.A． describe children’s thinkingB．answer some questions children haveC．stress the importance of communicationD．advise parents to encourage their children

[单选题]The purpose of the program is to provide training for employees so that they can work ______.A． lateB． laterC． latelyD． latest

[单选题]The purpose of the requirements definition phase is to produce a clear，complete，consistent，and testable (66) of the technical requirements for the software product．D．uring the requirements definition phase，the requirements definition team uses an ite

[单选题]The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable(71 )of the technical requirements for the software product.During the requirements definition phase, the requirements definition team uses an i

[单选题]The main purpose of the text is to _______.A． describe children’s thinkingB．answer some questions children haveC．stress the importance of communicationD．advise parents to encourage their children