单项选择题A.Inadequate medical care.B.Continuing social unrest.C.Lack of food, water and shelter.D.Rapid spreading of the epidemic.
单项选择题What is the Supreme Court’s attitude towards the government’s function in the control of greenhouse gases
单项选择题A.Only humans respond to emotions by shedding tears.B.Only humans shed tears to get rid of irritating stuff in their eyes.C.Only human tears can resist invading bacteria.D.Only human tears can discharge certain chemicals.
单项选择题We can learn from the first paragraph that laughter ______ .
单项选择题A.Late in the morning.B.Early in the afternoon.C.Sometime before dawn.D.Shortly after sunrise.