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【单选题】
与慢肌纤维相比，快肌纤维的形态特征是（ ）A.
肌纤维直径粗，毛细血管丰富
B.
肌纤维直径粗，线粒体数目多
C.
C 肌纤维直径粗，肌浆网发达
D.
肌纤维直径细，毛细血管少
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】帧速率是指________________。NTSC制式的帧速率为__________，PAL制式的帧速率为__________。
A.
每秒刷新图片的帧数
B.
29.97fps
C.
25fps
【单选题】Which one is not the presumptive symptoms of early pregnancy?
A.
Amenorrhea
B.
Quickening
C.
Morning sickness
D.
Frequency of micturition
E.
Lightening
【简答题】Early symptoms may involve changes in behavior. (Passage C) Answer: Early symptoms may changes in behavior.
【简答题】What are the symptoms of early-stage gingivitis?
【单选题】Early symptoms of acute hepatitis B may NOT include:
A.
suffocated
B.
vomitting
C.
fatigue
【简答题】What are the 5 Early Sign and Symptoms of HIV?
【多选题】The symptoms at the early stage of the disease include:
A.
dry cough
B.
fever
C.
breathing problems
D.
insomnia
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