【单选题】What is implied about Newman's juggling of school and play?
A.
He studies hard and spends more time on it than on play.
B.
He spends more time running companies than studying.
C.
He has no time playing because of school and work.
D.
He never minds how much time he spends on study.
【简答题】Tony never spends money on buying books ________ he
doesn't like reading.A. but B. because C. though D. until
【单选题】航空器上使用的铝合金板材通常是什么类型的材料?
【单选题】The Dreamer type never spends long hours in front of a desk.
【简答题】铸造铝合金包括 、 、 和 等系列合金。