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【单选题】

The Dongba music are usmmarized as "three treasures", which do not include ( )

A.
the ancient music
B.
the Naxi costumes
C.
the highly senior players
D.
the ancient musical instrument
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参考答案:
参考解析:
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刷刷题刷刷变学霸
举一反三

【单选题】Dongba characters are not ( )

A.
Alphebetic writing
B.
ideogram
C.
pictograph
D.
a living fossil that is still in use

【单选题】膝关节MR多平面成像的描述错误的是()

A.
矢状位成像:平行于股骨内、外侧髁后缘的连线
B.
矢状位成像:平行于股骨与胫骨的长轴,范围含内、外侧髁
C.
冠状位成像:平行于股骨内、外侧髁后缘的连线
D.
冠状位成像:平行于股骨与胫骨的长轴
E.
横轴位成像:平行于股骨与胫骨的关节面

【单选题】膝关节MR成像扫描参数描述错误的是()

A.
冠状位T1WI的TR时间是300-700ms
B.
冠状位PDWI-FS的TR时间是2000-5000ms
C.
失状位PDWI-FS的TE时间是100-150ms
D.
失状位T2WI-FS的TR时间是2000-5000ms
E.
冠状位T1WI的TE时间是10-30ms

【多选题】In this module we discussed the characteristics of the “novel entities” planetary boundary. Based on the information from this article, and from the lecture, what makes the use of perfluoroalkyl subst...

A.
It is a synthetic, human-made substance
B.
It is a toxic chemical that is known to impact the brains of seals, polar bears, and humans
C.
They easily accumulate on man-made surfaces in the Arctic, and enter the food chain through direct exposure to chemicals
D.
PFASs appear to be chemically persistent, because they have a fluorine molecule on the tail end
E.
PFASs are made in China, and appear to be easily transported to other areas, such as Greenland
F.
PFASs only impact the primary levels of the food chain (ex. plants), and does not bioaccumulate
G.
PFASs affect seals, and polar bears that eat seals, and have the ability to affect humans
H.
The effects of PFASs appear to be easily reversible

【单选题】肩关节MR成像时,被检查者体位及成像中心描述错误的是()

A.
被检者在检查时取仰卧位,头先进
B.
尽量将被扫描肩关节接近磁场中心
C.
上臂垫高与肩平齐,使被检者上肢自然伸直
D.
掌心朝上,尽量内旋
E.
被检侧手臂加沙袋固定,对侧肩部略抬高并在其下置放海绵垫