填空题electric→electronic
填空题separated→separate
单项选择题A.the first leg of the new programme is to comeB.two robots will be sent to explore the surface of Earth’s neighbourC.the Satellite Mars Reconnaissance Orbiter will circle the Red Planet while outfitted with a supercamera, capable of photographing objects the size of a footballD.SA plans to deploy a Smart Lander
填空题of→to
填空题of ∧ users→its