搜题请搜索小程序“爱下问搜题”
问题 单项选择题

食管癌18F-FDGPET/CT显像时，不属于产生假阳性的病例包括（）。

A.小病灶

B.胃食管反流

C.Barrett食管

D.食管下端生理性摄取

E.放疗后食管炎

答案

参考答案：A

问答题

教师如何提高驾驭课堂的能力
查看答案
单项选择题

(66) is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed,length bit string. (67) is a protocol that most USENET machines now use it to allow news articles to propagate from one machine to another over a reliable connection. (68) is an approach preferred by cable TV providers. In this solution the fiber terminates at an opt~electrical converter and the final segment is a shared coaxial cable. (69) is a device used to connect two separate network that use different communication protocol. (70) is a digital-to-digital polar encoding method in which the signal level is always either positive or negative.

A．MD

B．RSA

C．DES

D．MIB
查看答案