飞机驾驶舱有几个驾驶员座椅()
A、2
B、3
C、4
参考答案:C
-The weather is too cold ____ March this year. —It was still ____when I came here years ago.
A.for; colder
B.in; cold
C.in; hot
D.for; hotter
达因•秒/厘米2是动力粘度的单位。