T形接头能承受各种方向的力和力矩,所以应用最广泛。( )
参考答案:错
翼上应急滑梯充气瓶在什么位置?()
A.主轮舱
B.前货舱
C.后货舱
D.后电子舱
—How was _______ dinner at Mike’s house?
—It was great. Mike’s mum is _______ wonderful cook.
A.a, the
B.the, a
C.the, the
D.a, an