【C7】A．toB．byC．inD．with

Doctor Marescaux in New York watched the patient _____ a video screen.A、onB、byC、inD、with

【B2】A．toB．byC．forD．after

【C11】A．throughB．byC．inD．across

【C7】A．DespiteB．ByC．WithoutD．With

【C12】A．atB．byC．inD．for

【C16】A．exposed toB．discovered byC．experimented byD．absorbed by