男，56岁，食管癌术后，胸痛，呼吸困难，结合CT图像，最可能的诊断是()
A．食管癌肺转移
B．肺栓塞
C．支气管扩张
D．肺水肿
E．肺不张
参考答案：B
高位肠梗阻呕吐特点（）
A.出现迟，次数多
B.出现早，次数多
C.出现早，次数少
D.出现早，次数多，量多
E.出现迟，次数少，量多
The main function of a processor is to (68) and carry out instructions which usually consist of operation and (69) . The term to measure the speed of the processor is called a Megahertz (MHz), which means million (70) per second.
A．translate
B．interpret
C．describe
D．store
