目前粒子物理学家和天体物理学家关注的焦点之一是在太空中寻找反物质。人类已知的物质是正

题型:单项选择题

问题:

目前粒子物理学家和天体物理学家关注的焦点之一是在太空中寻找反物质。人类已知的物质是正物质,其原子是由带正电的质子和带负电的电子以及中子组成的。与此相反,反物质的原子是由带负电的质子和带正电的电子组成的。当正物质和反物质相遇时,两者会同时消失,所以在现实中还没有找到反物质存在的有力证据。材料表明()

①物质世界是不可知的

②宇宙间始终存在着人类尚未认识的事物

③物质的消失表明唯物论是错误的

④人的认识能力是有限和无限的统一

A.①②

B.②④

C.①③

D.③④

考点:高中政治思想品德求索真理的历程求索真理的历程题库
题型:单项选择题

原发性干燥综合征的常见表现为()

A.颊部蝶形红斑

B.口、眼干燥,猖獗龋齿

C.血管痉挛

D.静脉血栓

E.小关节炎症

题型:单项选择题

阅读下面的短文,并根据短文后的要求答题。(请注意问题后的字数要求)

Your children are so different-they each have very different talents, skills, and personalities, so it can seem natural to give them labels(标签). For example, one child may be the “smart one” or the “artist” or the “troublemaker”. Although it is easy to                    , you can be hard for your children.

Downsides of Labels

When kids are given negative(消极) labels they often feel that parents don’t expect or want them to change, and they may feel that they should live up to their negative labels. For example:

The “messy child” may see no reason to try to be neat and tidy when his parents have already defined his role in the family.

The “troublemaker” may feel that any attempt to be good will be ignored.

The “wild child” may think that he or she might as well continue to do crazy things

because parents expect it.

Even positive labels can be problematic as children may feel uneasy to meet their parents’ expectations, and often feel uncomfortable that their parents seem to like them more than a brother or sister.

Avoiding Labels

Remember that each child is unique and has the ability to do many things and act in many different ways.

Focus on the positives. For example, if your child, who always seems to be running late, but gets to the dinner on time, be sure to praise him for being on time.

Don’t let children lock themselves into roles-encourage children to try things they are interested in.

小题1:Who do you think the passage is mainly written for? (no more than 2 words)

                                                                           

小题2:According to the passage, list three negative labels given to children. (no more than 6 words)

                                                                           

小题3: Which sentence in the passage is the closest in meaning to the following one?

Avoid focusing children on some particular things only, you’d better encourage them

to do all that they fancy doing.

                                                                           

小题4:Fill in the blank with proper words. (no more than 6 words)

                                                                           

小题5:Translate the underlined sentence into Chinese.

                                                                           

题型:单项选择题

保险经纪人员在从业过程中,应当对他人和广大消费者做到恪守诺言,这体现了民法的______。

A.平等原则
B.意思自治原则
C.公平原则
D.诚实信用原则

题型:单项选择题

属于洋地黄类药物的是

A.夹竹桃
B.附子
C.朱砂
D.雄黄
E.雷公藤

题型:单项选择题

患儿,女,1岁,生后3个月起青紫加重,活动后气急,查体:生长发育明显落后,口唇、鼻尖、耳垂、指趾青紫明显,伴杵状指(趾),胸骨左缘闻及Ⅲ级收缩期杂音,肺动脉第二音减弱。

该患儿的治疗最终要采取

A.内科保守治疗

B.发病时内科用药

C.中医中药治疗

D.近期手术治疗

E.成年后手术治疗

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