用纸片法检验消毒后的食具表面大肠菌群的个数要求不超过()
A.0个
B.3个
C.5个
D.10个
E.100个
参考答案:A
---Do you often go shopping ,Tina? ---No ,_____.I didn’t like shopping at all .
A.always
B.never
C.sometimes
D.usually
股骨干中1/3骨折,骨折多有成角畸形,其成角方向多为()
A.前内
B.前外
C.后内
D.后外
E.外侧