CT扫描中常用的FOV是指 A．矩阵大小 B．兴趣区 C．灰阶标尺 _爱下问搜题

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问题单项选择题

CT扫描中常用的FOV是指

A．矩阵大小
B．兴趣区
C．灰阶标尺
D．扫描野
E．激光胶片的分辨力

答案

参考答案：D

解析：FOV的基本含义是重建图像的范围，CT扫描中常用的FOV是指扫描野。

完形填空

In 1971, a young man who grew up very poor was travelling across the country, trying to make a new __36__ for himself. Along the way, he had __37__ run out of money and was forced to spend the night in his car. This    38    until one morning, after a week of sleeping in his car, he walked    39    into a restaurant and ordered a big breakfast.
After eating his first good meal in    40  , he found himself    41  to the waiter, telling him he had lost his    42 . The waiter, who was also the owner, walked    43   the chair where the young man had been sitting. He bent down,   44    a $20 bill that looked    45  it had fallen on the floor and said, “Son, you must have    46  this,” the owner said. The young man couldn’t believe his    47  ! He quickly paid for the breakfast, left a    48 , bought gas with the change, and headed West.
On the way out of town, he began to understand    49  the fellow did. Maybe nobody dropped the money    50  . “Maybe that fellow just knew I was    51  and he helped me in a way that didn’t __52__ me.” Right then he made a promise to help others if he could.
Later, he worked very hard and became a rich man. Now, he lives near Kansas City. Each year he    53   thousands of dollars. He is known as the “Secret Santa” because at   54  time each year, he personally hands money out to those on the streets and at hospitals. “I’ve lived the story, so I know it certainly more blessed（带来快乐的） to give than to ___55__, because it comes back to you many many times over,” he says. “It restores some faith in humanity.”

A．unexpectedly

D．necessarily

小题14:A. what B how C. where D. that

多项选择题

资产管理系统权限设置的原则（）。

A.权限最小化

B.权限最大化

C.不相容权限相分离

D.重要岗位权限互相牵制