如果出现非工程咨询单位应负责的情况，对于暂停服务的还应加( )天以内的恢复服务期限。
A．43B．44C．42D．45
参考答案：C
Peter is busy _____ at school, but he never forgets _____ exercise every day. [ ]
A. working; doing
B. working; to do
C. at work; doing
D. worked; doing
患者，男，48岁。肩背皮肤浅层肿块，与皮肤粘连，瘤体表面中心有黑色粗大毛孔，挤压时有臭脂浆溢出。其诊断是
A．脂瘤
B．肉瘤
C．流痰
D．血瘤
E．筋瘤
