单项选择题



Scientists ignored Lake Vida because they thought that a lake of ice__________.
<上一题 目录 下一题>
热门 试题

单项选择题
“…we will need to cure our addiction to oil．”Why does the author say so
A．Most of the energy on Earth comes from the Sun．
B．Oil supply is increasing all the time．
C．Demand for oil is increasing all the time．
D．Oil supply is decreasin．
单项选择题
What are researchers interested in doing as the road accidents worldwide increase to a shocking rate
A．They are developing faster electric vehicles．
B．They are analyzing road deaths occurring worldwide every year．
C．They focus their research on safety and new fuels．
D．They are designing fully automatic cars．
相关试题