骨与关节结核最常见的发生部位（）。
A.脊柱椎体
B.膝关节
C.髋关节
D.踝关节
E.腕关节
参考答案：A
Chan’s restaurant on Baker Street, __________ used to be poorly run, is now a successful business.
A．that
B．which
C．who
D．where
洛贝林肌内注射时一日极量是（）
A.3mg
B.6mg
C.10mg
D.20mg
E.50mg
