单项选择题

Another example of a scientific model would be （）

A．a map
B．a paper airplane
C．an atom
D．a light bulb

<上一题目录下一题>

热门试题

单项选择题

According to the passage, if we go on increasing the population, we will face （）

A．a food shortage
B．a crisis
C．an overpopulation
D．a starvation

单项选择题

What’s the main idea of paragraph one（）

A．The author is a student of an American university.
B．There are differences between America and Lebanon.
C．American system of college education differs from Lebanese one.
D．Studying is har