参加鼠疫病例尸体解剖的人员,要做好个人防护,防护装备包括()
A、内隔离衣
B、防蚤袜及长筒胶靴
C、帽子和N95口罩
D、外层隔离衣、手套、防护眼镜
参考答案:A, B, C, D
When Henry arrived home after a hard day at work, his wife was slept .
A.his wife was sleeping
B.his wife slept
C.his wife has slept
D.his wife has been sleeping
通常采用()来确定债券的违约风险大小。
A.风险溢价
B.信用溢价
C.信用评级
D.违约概率