流行性出血热
参考答案：
流行性出血热是由汉坦病毒引起的一种自然疫源性疾病，鼠为主要传染源。临床上以发热、休克、充血、出血和急性肾衰竭为主要表现。
Rainforests _______ and burned at such a speed that they will disappear from the earth in the near future.
A．cut
B．are cut
C．have been cut
D．are being cut
专业展和博览会的区别
