当隧道衬砌周围地下水有明显集中通路，水流量很大时可采取地下截水设施截断水源。
参考答案：对
男性，10岁。右大腿下端疼痛肿胀，皮温增高，伴高热39.5℃。临床怀疑为急性化脓性骨髓炎。
在对患儿进行体格检查中，最具临床意义的体征是（）
A.右股骨下端皮温升高
B.右股骨下端（干骺端）深压痛
C.右股骨下端肿胀
D.局部血管充盈怒张
E.右膝关节伸屈受限
Soon, more of the information we receive via the Internet could come (155) in digital wrappers. Wrappers are made up, (156) software code that’s targeted to do specific things with the data (157) within them, such as helping to define queries for search engines. They also keep (158) from (159) access to that code.
A．of
B．off
C．on
D．out
