【单选题】钙对人体的作用是重要的,人体中最大的钙库是
【单选题】项目区别于其他任务(运作)的最基本特征是
【单选题】According to the passage, which of the following is characteristic of labeled-line theory of taste perception?
A.
The implication that a simultaneous activation of cells is unnecessary to trigger a taste experience
B.
The suggestion that each particular type of gustatory cell is unassociated with the perception of an individual taste
C.
The acceptance of the notion that large patterns could be responsible for creating taste perceptions
D.
The postulation of a concept that specific neurons do not correspond to specific tastes
E.
The view that different kinds of neurons are undifferentiated on a physiological level
【单选题】Which of the following underlined parts is different in pronunciation from others?
A.
We know that cormorants are large bl a ck birds.
B.
The m a n wants to teach his son everything he knows.
C.
His trips often begin in the l a te afternoon.
D.
The old man likes to c a tch the fish with his friends at weekends.
【判断题】基本动作是指人体大肌肉群与小肌肉群都同时参与用力的动作 。
【判断题】肌肉是人体的支架,起支持人体重量的作用。
【判断题】股四头肌是人体中最大的肌肉。作用:屈膝关节,股直肌还可屈髋关节