小于六月龄的婴儿宜选用蛋白质含量多少的配方奶粉（）
A.12％～18％
B.<12％
C.18％～25％
D.25％～33％
E.>33％
参考答案：A
Professor Williams keeps telling his students that the future __________ to the well-educated.
A．is belonged
B．is belonging
C．will be belonged
D．belongs
容易发生腰椎间盘突出的部位是（）
A.L1～L2
B.L2～L3
C.L3～L4
D.L4～L5
E.L5～S1
