简答题When reading a document, if you stumble, you should ________. A、stop at once B、pick up and continue C、laugh at yourself简答题Tuberculosis, cholera, AIDS, or the flu are ________—caused by micro-organisms like viruses, bacteria, fungi, or parasites. A、 degenerative B、 infectious C、 chronic简答题Why did Obama speak very slowly at the beginning of his speech? A、To show his authority B、To catch people’s attention C、To show off简答题Once the doctor has made a ________, he usually prescribes one or more treatments to try to help the patient get better. A、 conclusion B、 test C、 diagnosis简答题What question kept troubling Hejiang? A、Why scientific knowledge is unequally distributed throughout the world. B、Why he couldn't receive a good treatment. C、Why there are better, less painful and less risky treatments existing.简答题"Penetrate" means ________. A、穿透 B、横跨 C、渗透简答题Choose a picture for the word "herb". A、 B、 C、简答题Oculist who work on ________. A、 decayed teeth B、 bad eyesight C、 injured leg简答题Effective speaking means being able to speak in a public context with (1) and (2), while at the same time showing your own (3).简答题When talking to a group or meeting, it is important to aim your talk ________. A、to the front row B、to the people nearest you C、to those furthest away