作为青少年来讲，养成好习惯对我们来说很重要。你觉得青少年应养成哪些习惯？补全下面的句子。

参考词汇：help people in need; say dirty words; talk loudly in public; throw litter everywhere; on time; lie to others…

①.I think it’s very important                           .

②.Never                                     .

③.We should                                   .

④.We’d better not                              .

⑤.Don’t                                .

FPD能够成为平板形状，主要是探测器的单元阵列采用的是（）.

A.薄膜晶体管技术

B.光敏照相机技术

C.光电倍增管技术

D.光激励发光技术

E.非晶硒技术