简述电子商务的竞争优势

关于幼儿园儿童蔬菜安排不科学的有哪些？（）

A．由于蔬菜和水果营养成分相近，可以用水果替代蔬菜

B．每天应保证有200—250克蔬菜

C．应保证1／2全天供应蔬菜为绿色蔬菜

D．不能有太粗硬的纤维，要易于咀嚼

下列各项语句与作品出处对应有误的一项是[ ]

A．万事俱备，只欠东风。——《三国演义》

B．李逵见了，惶恐满面，便道：“哥哥休怪！铁牛闲常只是赌直。”——《水浒传》

C．凤姐冷笑道：“你们要拣远道儿走么！早告诉我一声儿，多大点子事，还值得耽误到这会子！”——《红楼梦》

D．那王小玉唱到极高的三四叠后，陡然一落，又极力骋其千回百折的精神。——《儒林外史》

My name is Jim White. I live in America. I had a very u __小题1:__ experience on Sunday. I s___小题2:___a UFO in the daytime. Early this spring, I went outside w___小题3:___ my friend Bill who lived close to me. We were walking to a hill when I saw a l___小题4:___ bright light dancing in the sky. I called Jim and asked him to look up. He kept a___小题5:___, “What is that?” “A UFO!” I shouted excitedly. I n__小题6:__ it was round and red in the center.

After we looked at it for a m__小题7:__, we found it seemed that it had wings, but it was still round. Bill would not b__小题8:___ me when I told him it must be a UFO. We shouted t__小题9:__ it and we wished that it would land. We wanted to know i__小题10:_ there was an alien in it. But soon it disappeared. I guessed we scared it off.

Do you believe me? It’s a true story.

地形匹配中的雷达高度表用于测量导弹到海平面的垂直高度

某工人本月加工完成的甲产品数量为100件，其中合格品为95件，料废产品为2件，由本人过失造成的工废产品为3件。计件单价为10元／件。据此计算的该工人本月计件工资为（）

A.950元

B.970元

C.980元

D.1000元