在血液中,呈淡黄色的半透明液体是()
A.血细胞
B.红细胞
C.血浆
D.血清
参考答案:C
—How do you like our new teacher?
— Very ______. He often says something new to make us laugh.
A.imaginative
B.humorous
C.modest
D.outgoing
单杠引体向上从直臂悬垂变为曲臂悬垂时,肱三头肌,肘肌等是()
A、原动肌
B、对抗肌
C、协同肌
D、中和肌