【单选题】To encourage consumers to travel by train, DDB Needham emphasized______.
A.
the freedom and convenience provided on trains
B.
the practical aspects of travel
C.
the adventurous aspects of train trips
D.
the safety and cleanliness of train trips
【单选题】骨盆的构成,正确的是
B.
正常位置为两侧髂前上棘和两侧耻骨结节同在一个水平面上
【多选题】药物中杂质限量的检查方法(策略)包括:( )
【单选题】To encourage consumers to travel by train, DDB Needham emphasized ______.
A.
the freedom and convenience provided on trains
B.
the practical aspects of train travel
C.
the adventurous aspects of train trips
D.
the safety and cleanliness of train trips
【简答题】全年工艺成本与年产量呈____,单件工艺成本与年产量呈____。