A:①②
B:①④
C:③④
D:②③
据图判断下列说法正确的是( )
下列等式错误的是( )
The programme showed those doctors and nurses _______special importance to any potential symptoms in the population.
She _____ some of the food for her husband and went out.
水的比热容大于酒精的比热容.下列说法中正确的是( )