Which of the following is the incorrect description of duodenal ulcers? A: Duodenal bulb ulcer and gastric ulcer are similar in size, with a diameter of about 5-500px B: Most of the duodenal ulcers occur in the bulb C: Duodenal bulb ulcers are mostly in the posterior or anterior wall D: Axial image of duodenal bulb ulcer presents as a round or grain-like increased density E: Duodenal ulcers can cause irritation

Like Edison, who created the light bulb, I make new things. I’m a(n) __________.

Food is to nutrition as light is to______. () A: reading B: vision C: bulb D: electricity E: watt

Another example of a scientific model would be （）. A: a map B: a paper airplane C: an atom D: a light bulb

“This light is too ________ for me to read by. Don’t we have a brighter bulb some where”; said the elderly man.

The X-ray finding of duodenal ulcers is____. A: niches B: bulb deformation C: mucosal disorder and tortuosity D: pyloric spasm

Electricity is to wire as______. () A: water is to aqueduct B: music is to instrument C: light is to bulb D: river is to bank E: sound is to radio

In a narrow sense, which of the following is a "product" rather than a "service" A: Photocopying of document B: Iight bulb C: Hair-cutting D: Express Service

Where synapses of olfactory nerve are made? A: mucosa of the superior nasal conchae B: bipolar neuron C: olfactory bulb D: olfactory tract

Sally: Is it brokenKate: Yes, the bulb is broken. I’m afraid I won’t be able to use the projector. （） I have some paper copies in my briefcase.Sally: Sure. Take your time. A: Could you bear with me B: Something has gone wrong. C: Could you see to it D: Where could we find a new bulb