Which of the following does not belong to new CT technology（）
A. HRCT
B. CTA
C. Virtual endoscope
D. Volume rendering
E. MIP
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MR is not sensitive to which of the following tissue（）
A. Bone
Brain tissue
C. Water
D. Soft tissue
Which of the following chromosome compositions in a sperm normally results in the production of a genetic female if fertilization occurs（）
A. 23 homologous pairs of chromosomes
B. 23 autosomes plus an X chromosome
C. 22 autosomes plus a Y chromosome
D. 22 autosomes plus an X chromosome
The advantage of CT is（）
A. high density resolution
B. high spatial resolution
C. low density resolution
D. low spatial resolution
E. low density resolution and high spatial resolution
Components of conventional CT include（）
A. computer system
B. laser camera
C. superconducting coil
D. RF generator
E. probe
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