口腔颌面部损伤患者怀疑有颅脑损伤时，应注意观察（）。
A.神志
B.脉搏
C.呼吸
D.血压
E.瞳孔
参考答案：A, B, C, D, E
Dina, ____ for months to find a job as a waitress, finally took a position at a local advertising agency. [ ]
A. struggling
B. struggled
C. having struggled
D. to struggle
自动变速设有O/D开关—超速档开关，该开关（）后，自动变速器才可以进入超速档。
