A disguise B ornament C implement D toxicity

A criticized B passive C hesitate D support

A to prove butterfly wings are versatile living organs B to look into butterflies' body temperature control C to analysis the process of butterflies' metabolisms D to ignite butterfly wings to find heat detectors

A obstruct their possible reactions B eliminate interference factors C measure optical sensitivity D probe the location of sensors

A They turned out to be simple living organs rather than dead issue. B The role of veins is only to full inflate and stretch butterfly wings. C The neutrons found in wings carry haemolymph to create a heartbeat. D They are sensitive to ambient temperature due to sensory cells.

A reinforce its business B protect its territory C establish its realm D preserve its reputation

A is bundled with web-connected smartphones. B might be a typical ease of viral marketing. C needs more engineers to process big data. D cuts its operating costs due to cloud computing.

A Facebook is losing its appeal for younger users. B Whats App has a myriad of royal users. C Whats App helps enhance Facebook's public image. D Facebook's dominance in social networking is fading.

A that rare bird working against techgiants. B an opponent of tracking users'information. C a strange partner for his unusual work style. D an advocate of apps with real-time ads.

A Supportive. B Skeptical. C Impartial. D Biased.