ZP-89型双线单向四显示自动闭塞采用无选频接收盘。
参考答案:对
The most popular food for foreigners __________ on any menu in Beijing is roast duck. [ ]
A. include
B. to include
C. including
D. included
下列哪种情况需手术探查()
A.损伤性窒息
B.皮下气肿
C.纵隔气肿
D.胸部爆震伤
E.胸腹联合伤