单项选择题


Passage Two
What do we learn about the"brain"of robots

A．It can store many instructions.
B．It can perform few tasks.
C．It is a symbol of modernization.
D．It is as clever as human brain.
<上一题 目录 下一题>
热门 试题

单项选择题
What do we learn about a stem cell
A．It has no difference from other cells.
B．It can only become a certain type of cell.
C．It can’t become a kidney cell.
D．It maintains and repairs the body.
单项选择题
What was the main purpose of having a watch during the 1800s
A．To know direction.
B．To measure time.
C．To show off one’s wealth.
D．To get to work on time.
相关试题