肥胖患者吸入麻醉药首选（）
A.异氟烷
B.恩氟烷
C.七氟烷
D.乙醚
E.氧化亚氮
参考答案：A
How long does it take your father ______ to work every day?
A．to drive
B．drives
C．driving
D．drive
-What do you often have for __________ breakfast?
-__________ glass of milk and some bread.[ ]
A. /; A
B. the; A
C. a; The
D. /; The
