【简答题】化学电池若由两种电极插在同一种溶液种组成不同,称为 电池,若两个电极分别插在两种组成不同,但能相互连通的溶液中,则称为 电池
【单选题】Only 3 percent of US adults have a more than 10 percent 10-year risk of heart disease.
【单选题】Only by increasing the number of doctors by 50 percent ________ properly in this hospital.
A.
can be the patients treated
B.
can the patients be treated
C.
the patients can be treated
D.
treated can be the patients
【单选题】Although crowded cities seem to be a ______ of our crowded world, only 10 percent of the world' s people live in cities as large as Madrid or larger.
【简答题】According to scientists, we use only 10 percent of our brain.