Unit 8 Is biotechnology our friend or enemy?Done with this task.Your current score: 96%Unit 8 testNext Directions: Click on the speaker to the left to start playing the audio recordings for Parts I, II and III. They will be played continuously. Once the recording starts playing, please do NOT click on either the speaker icon or the Unit Quiz link in the menu bar above. Otherwise, you may lose the chance of hearing the complete recording. 窗体顶端Part I Script
