下列对病句的修改不正确的一项是( )
A:我国成功发射并研制了第一颗月球探测器“嫦娥一号﹣卫星。(把“发射并研制”改为“研制并发射”)
B:学校开展地震安全常识教育活动,可以增强同学们的安全自我保护。(把“可以增强”改为“增强了”)
C:她的画简洁明快,跳动着青春的气息,一直都是大家所喜闻乐见的。(将“喜闻乐见”换成“喜爱”)
D:为了你的人身安全,请勿用左手启动家电,以防万无一失。(将“以防万无一失”换成“以防万一”)
单词拼写:⑴There are four q____ in an hour.⑵What r____ do you have at your school?⑶Go to w____ your dirty hands.⑷Thank you for t____ me an interesting story.⑸I usually go s____ in the river.⑹Now animals are in great d____ .⑺Your father is sleeping.Please be q____ .⑻My brother always t____ a shower at 7:00.⑼Good l____ to you.⑽Look, Steve is f____ with Tom.We must stop them.
①该商品的价格下降 ②替代品的价格上升
③互补品的价格下降 ④消费者收入增加。