【单选题】Which of following is NOT the Imaging manifestation of cavernous hemangioma of liver
A.
In CT plain scan,the focus is low-density with clear boundary
B.
In arterial phase, the peripheral part enhances obviously with nodular and cotton-like appearance
C.
In CT images ,the focus is low-density during the hepatic parenchymal phase
D.
In MRI,the feature is ” Bulb”sign on T 2 WI
E.
The curve of “enhancement-time”is”fast –in and slow-out”
【简答题】Doctor: Good Morning, Mr. Brown. Patient: Good Morning, Doctor. Doctor: I'm going to give you a CT scan of your head. Please __________________(脱去) your shoes and metal accessories, lie on the table, ...
【单选题】Thermodynamics studies .
A.
the relationships between the molecules of a system
B.
heat, energy, and work
C.
heat, work, temperature, and the energy they produce in the states of systems
D.
heat, work, energy, and the changes they produce in the states of systems
【简答题】The first of Thermodynamics is
【简答题】What is thermodynamics?
【简答题】There is a passage with six blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Computed tomography, more commonly known as a ...