A:轻者重之端,小者大之源
B:会当凌绝顶,一览众山小
C:但愿人长久,千里共婵娟
D:蝉噪林逾静,鸟鸣山更幽
下列化学仪器需垫加石棉网才能用酒精灯加热的是( )
________ of the workers around the country lost their jobs in ________.