在三相供电线路中，（）上绝不允许设置熔断器或开关，以免失去保护作用。A、中线B、相线

有人认为，唯物主义者就是一味追求物质财富的满足，专门迷恋物质享受的人；唯心主义者则是追求“心灵”世界的满足，追求远大理想，相信社会进步的人。这种观点：

A．没有看到物质和意识之间的同一性

B．没有正确区分唯物主义与唯心主义

C．肯定了不同的人不可能有相同认识

D．割裂了客观事物之间的内在联系

功效润肺清心，养阴生津的药物是( )

A．天冬

B．黄精

C．生地黄

D．麦冬

E．石斛

As any parent with an iPhone or an iPod Touch knows, mobile apps (手机软件) can be an engaging and entertaining experience for kids. Now, a new study of PBS Kids suggests that the experience can be an educational one as well.

The study, which was administered by PBS under a grant from the Department of Education, first tested the vocabulary level of a group of 90 Title 1 school children, aged 3 to 7. Then, the children were each given two weeks with an iPod Touch loaded with the Martha Speaks Dog Party app created by PBS Kids.

The study monitored how the children used the iPod, during what hours, and in what context. On average, the study found that kids played with the iPod Touch for a total of 5 hours across the two weeks, with half that time spent playing the Martha Speaks app. At the end of the two week trial, the children were given another vocabulary test, which revealed an increase in vocabulary acquisition by as much as 31 per cent.

The study findings are particularly useful as smart phones and mobile devices have become increasingly popular among families and parents are faced with a proliferation of mobile apps designed for kids. According to a recent Nielsen study, smart phone usage is 12% higher in households with children than other households.

“Mobile apps can be a great learning tool in the hands of children,” said Lesli Rotenberg, SVP, Children’s Media, PBS. “This research is important in helping to better understand and guide the development of new apps that improve the value of children’s screen time with significant educational outcomes.”

So what does it all mean? Well, at the very least it will help parents get over that guilty feeling when they hand over their iPhone or iPod Touch for a little peace and quiet. At best, it provides more evidence that mobile devices and apps do indeed have educational value and could be an important part of the child-learning process for many years to come.

小题1:What Lesli Rotenberg said in the fifth paragraph suggests that      .

A．he has a positive attitude towards mobile apps

B．he thinks children should never use smart phones

C．he is doubtful about mobile apps designed for children

D．he thinks parents should be careful with mobile apps for children小题2:The underlined sentence in the last paragraph implies that      .

A．parents will feel more comfortable giving kids iPhone or iPod Touch

B．parents will know what kind of mobile phones are suitable for kids

C．parents will know what children do with mobile phones

D．parents can watch over their children now and then小题3:What would be the best title of the text?

A．The popularity of smart phones among kids

B．The entertaining function of smart phones

C．Smart phones make kids learn more.

D．It’s too early for kids to use smart phones

对幼儿园前识字教学说法错误的一项是（）。

A.识字是学习书面语言的内容之一

B.识字是学习书面语言的方式之一

C.识字是学习书面语言的唯一的内容和方式

D.大量系统的识字不是儿童早期阅读的主要内容

关于儿科疾病的特点，错误的是（）

A.儿科疾病病种简单，相应患儿的临床表现明显

B.儿童免疫功能不完善，对疾病的修复能力差，易遗留后遗症

C.儿童用药应按儿童身高来计算

D.儿童时期适当采取预防措施，可减少成人时某些疾病的发生

E.儿童对疾病的表述常有困难，因此向家长了解病史比体格检查更重要