在双代号网络图中，任意一条实箭线除特殊情况外都（）。A．只占用时间，不占用资源 B．

皇帝对丞相的礼仪：由赐座、探病到站着奏事，由站着奏事到必须跪着奏事，实质可以反映出（）

A.皇帝对大臣要求提高

B.皇帝与大臣隔阂不断加深

C.朝廷礼仪的完善

D.皇权的加强，大臣地位的不断下降

设N_A为阿伏加德罗常数，下列说法不正确的是（　　）

A．23g钠在氧气中完全燃烧失去电子数为N_A

B．1L2mol/L的MgCl₂溶液中含Mg²⁺数为2N_A

C．标准状况下，11.2LH₂O所含分子数为0.5N_A

D．分子数为N_A的CO气体质量为28g

将喉弹性膜分为上、下两部分的是：（）

A.甲状软骨上缘

B.甲状软骨下缘

C.室带

D.喉室

E.声带

I don’t like my parents. They always tell me I should do this, and should not do that. It sometimes makes me angry,” said Liu Dan, a middle school student in Beijing. Do you have the same problem? Perhaps your parents had the same problem when they were your age long ago. Why does it seem that some parents are not so friendly in their children’s eyes?

One of the biggest things is when someone becomes a parent, he or she likes worrying things. They worry about everything about you from the time you were born. They do a lot for you, though something would make you angry, because they care about you and worry about you. They worry about your choice of friends, the food you eat, your work at school, how much sleep you get, etc. All these things are part of your life. They want you to grow up healthily and happily.

So how can you make things easier on yourself? It’s easier than you think. Just make sure your parents know what you’re doing. Get them to know your friends. Call them if you stay somewhere else later than usual. Say sorry to them when you make mistakes. Take responsibility for what you have done. Talk about your ideas with them. They may talk about theirs with you.

Most of all, try to think about why your parents do this or do that. They are still practicing being parents and need help you can give them. Someday, when you become a parent, they may be able to help you how to get on with your children.

小题1:The writer of the passage doesn’t agree that _______.

A．parents want you to grow up healthily

B．parents don’t want you to make some bad friends

C．parents worry about everything about you

D．parents want to control you小题2:Some of the children are angry with their parents in the passage because ________.

A．the parents think they eat too much

B．the parents don’t like the friends that their children have made

C．the children don’t live with their parents

D．the children are limited by their parents小题3:“They are still practicing being parents.” means _______.

A．parents are not always right

B．parents should practice more

C．parents have many mistakes

D．parents are always right小题4:The main idea in this passage is that _______.

A．some of the parents in China don’t love their children

B．children and parents should understand more about each other

C．parents should worry too much about their children

D．children should bear everything their parents arranged

下列关于不明原因疾病的实验室检测结果判断，说法正确的是（）

A、由于发生暴发的疾病临床特点并无特异性，难以在尽可能小的范围内预判病原体种类，则可能需要进行多种病原体的实验室排查。

B、如果检测结果并无明确的指向甚至呈现多种病原体检测结果皆为阳性的情况，常需要调查人员认真总结归纳病例的典型临床特征，结合流行病学情况对疫情性质进行判定。

C、判定新发传染病的病原体则需要考虑是否符合科赫原则。

D、如果实验室检测结果与现场调查中所怀疑的主要疾病的临床表现不符，或者检测结果均为阴性时，应以实验室检测结果作为判定依据。