单项选择题

The passage is mainly about______.

A．what physical features the giraffe has
B．how the giraffe's heart works
C．how the giraffes heart pumps blood to its head
D．how the giraffes can stand up to high blood pressure

<上一题目录下一题>

热门试题

单项选择题

The new physics is exciting because it______.

A．offers a comprehensive explanation of the universe
B．proves the existence of a ruling intelligence
C．incorporates the work of men of genius
D．makes scientific theorizing easier to understand

单项选择题

The author of this passage is______.

A．a minister of religion
B．a research scientist
C．a science fiction writer
D．a journalist