选词填空。
宽广 因此 排列 树立 如果……就…… 与其……不如…… 宽敞 因为 陈列 建立 宁可……也不……
____你走进为民商店的大门，____会看见____的售货大厅里一排排货架上，____着琳琅满目的商品。售货员们____了一心为顾客服务的好思想，他们____自己麻烦千遍，____不让顾客一时为难，____顾客们都称赞这里是购物的乐园。
将一粒花粉粒培养成幼苗，再将它的茎尖用秋水仙素处理，长大后该植株正常开花结果。与该植株其它细胞染色体数目不同的是 ( )。
下列表述不完全正确的一项是 ( )
先阅读下列表格：
x
…
1.1
1.2
1.3
1.4
x2+12x﹣15
﹣0.59
0.84
2.29
3.76
由表格可知方程x2+12x﹣15=0的正根的十分位是（ ）
In the future I am going to be an inventor．This winter holiday I don't want to go out to play．I want to ____something myself at home．I want to help old people____a light and folding bike．They ride it to the ____，then folding it and put it in the bag．After buying some things they can ride it and carry their things to go ____．They are not tired．I think if they see it，they must be very ____．
