Mint. com has benefited from a cultural shift as well as a tectmological one. During the free-spending housing bubble, a Web site that encouraged people to manage spending, comparison, shop, and save was definitely out of step with the prevailing mood. But once the financial and housing markets tanked and the nation" went into recession, the zeitgeist (时代精神) shifted. Shrinking top lines have caused people to focus on the bottom line, and the savings rate has spiked. Third homes and luxury goods are out; coupons (优惠券) and growing your own vegetables are in. Saving is the new borrowing. Thus considered, Mint. corn, which launched in September 2007, timed the market perfectly. It hit the Web at a time when more Americans suddenly had the time, inclination, and motivation to manage their financial affairs more prudently. And it gave them a way to do it without having to spend a dime. What is the main reason that mint. com is successful
A. it offers free service.
B. It came into the market at a perfect time.
C. It meets people’s expectations of websites.
D. It catered to people’s interest in planting vegetables.
[案例三十三] 患儿,男,8岁。自幼就比同龄小孩发育慢些,两岁才会走路,会叫爸妈,目前只会讲简单的句子,基本上仅用于表达要求,如“要吃饭”、“妈妈走”,不会进行简单的交流,不会和其他小朋友玩,不会玩玩具。吃饭、大小便不能完全自理,需要家人协助。勉强呆在幼儿园,老师反映患儿什么都学不会,且手脚总动个不停,注意力不集中,上课时满地跑,有时用头撞墙。查体:患者眼眶距宽,两眼外角上斜,内眦赘皮,鼻梁低,通贯掌。精神状况检查:患儿在诊室里手脚动个不停,只会从一数到三,不认识颜色,会用积木搭四层塔,对部分指令不理解,会讲简单的词,不时傻笑,晤谈间突发冲动,用头撞墙。 你认为此患儿存在哪些精神症状
A. 智能低下
B. 全面性痴呆
C. 不协调性精神运动性兴奋
D. 注意力不集中
E. 刻板行为
F. 幻听