小题1:Huanan Tigers are one of _____(濒临灭绝的) animals.

小题2:To my great _____（高兴），I have passed the final examination.

小题3:What's up? There's such a loud        （噪音） in the room.

小题4: There is a  __________ (职业) player on their team.

小题5:People are much________ (富有) than ten years ago.

彩色多普勒血流成像下述哪一种性能是正确的？

A、能显示平均速度为零的灌注区的血流 

B、血流成像对入射角度的相对非依赖性 

C、不受血流速度的影响，不会发生血流信号的混叠 

D、彩色多普勒成像无法显示血流速度的快慢 

E、彩色多普勒成像能显示血流方向