Why didn’t people begin to use unmanned vehicles in undersea exploration until r

游客2023-10-08 44

问题 Why didn’t people begin to use unmanned vehicles in undersea exploration until recently?
It is because of the ______.
[br] Why is ocean exploration not so expensive as space travel?
Because ______ for submersibles to get away from the Earth’s gravity.

选项

答案 there’s no need

解析

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Why didn’t people begin to use unmanned vehicles in undersea exploration until r

因为人们有各自不同的兴趣和爱好，所以他们所喜欢的电视节目也各不相同。Since/Aspeoplehavedifferentinterestsand

Peoplehaveattemptedtosimulatehumanvoicesinmachinesforquitesometi

Peoplehaveattemptedtosimulatehumanvoicesinmachinesforquitesometi

Interviewer:Mostpeoplelovethecircus.Areyoureadyfortomorrowafternoon’s

The______physicisthasbeenchallengedbymanypeopleinhisfield.A、respected

Moreandmorepeoplearebecomingawareofthedangersfacingourplanet.______

Peoplesayhewasacold______man,amurdererwhoshouldhavebeenexecuted.A、ac

Thepeoplearoundhimkeptsaying______thedrownedmanbuthewentondoingar

Thestoryoftheirexplorationisinextricably______thecharacterofthecavest

Peoplecarryoutmuchoftheircommercehere,______sellingvegetables,serving

()危险，请勿入内()小心火灾[br]()欢迎检查()小心轻放N、M

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体外抗菌活性最强的喹诺酮类药物是A.氧氟沙星B.吡哌酸C.洛美沙星D.环丙沙星E

测试结果如果稳定、可靠，将会有的特点包括()。A.重测信度高，即被试者在不同时间

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