单项选择题

If you don't have as much sleep as your body needs, you will （）

A．work properly
B．think clearly
C．keep your attention on your work
D．easily get angry

<上一题目录下一题>

热门试题

单项选择题

According to the passage, which of the following is true（）

A．Spiders were the first life that could live on the island.
B．The island is far away from any piece of land.
C．Insects could not live on the island without plants.
D．Plants were brought to the island by human beings.

单项选择题

The passage centers on （）

A．how an undersea volcano broke out
B．how an island rose up in the sea
C．how soil was formed on a new island
D．how life began on a volcano-produced island