由NaHS、MgSO4、NaHSO3组成的混合物中,已知S元素的质量分数w(S)

题型:选择题

问题:

由NaHS、MgSO4、NaHSO3组成的混合物中,已知S元素的质量分数w(S)=a%,则O元素的质量分数w(O)为 [ ]

A.1.25a% 

B.1.75a%

C.1-1.75a%   

D.无法计算

考点:物质组成元素的质量分数
题型:选择题
If you think you are too shy and want to be a little bit braver, just try the following things.
Be open to others. Tell people you are shy. There is no need to hide it. When they get to know you are a shy kid, they will understand you better. This also helps you feel more comfortable in talks.
Try to smile more. When you smile , people think you are friendly and easy to talk with. Remember that other people have feelings, too; and most people will stay away from an angry-looking face.
Learn to be a good talker. If you find it hard to start a conversation, say something nice about people around you. Think about how great you feel when someone says something nice to you. Doesn’t it make you want to keep talking to that oerson?
Get your attention elsewhere. Think more about ways to enjoy parties or games. Don’t waste time worrying about your look or whether people like you or not. You will become relaxed and find it’s not so hard to talk with others.
Take one small step at a time. Each time when you say “Hi!” or smile at someone, say to yourself “You can make it.” Keep trying and one day you’ll never feel shy when you talk to others.
Title: Advice on __小题1:__to be a little braver
Advice
Reasons
Don’t __小题2:____the fact.
If you tell people you are shy, they will understand you better.
Smile more.
People don’t ___小题3:___the one with an angry-looking face.
Start a conversation with ___小题4:___words.
People will feel great and want to talk to you.
Pay more attention to ways to enjoy ___小题5:__or games.
You will become relaxed.
Encourage yourself to say”Hi!” or smile at someone.
Keep doing this and you’ll be braver to talk to others ___小题6:__the future.
 
题型:选择题

干性支气管扩张的唯一症状是()

A.慢性咳嗽

B.大量脓痰

C.咯血

D.咳痰与体位变化有关

E.呼吸困难

题型:选择题

口服丙磺舒减少青霉素的排泄

A.干扰药物从肾小管分泌
B.改变药物从肾小管重吸收
C.影响体内的电解质平衡
D.影响药物吸收
E.影响药物在肝脏的代谢
下列药物相互作用属以上哪种

题型:选择题

男性,47岁,急性发作腹痛5天,高热,上腹部可扪及压痛的肿块,超声波检查示液性肿物,尿淀粉酶2048U/L。应考虑为

A.胰腺囊肿并发感染

B.溃疡病穿孔膈下脓肿

C.腹腔脓肿

D.肝脓肿

E.胆囊积脓

题型:选择题

学校文化建设有多个落脚点,其中,课堂教学是学校文化建设的主渠道。在课堂教学中,教师必须注意加强学校文化和学科文化建设,这主要有利于落实课程三维目标中的()

A.知识与技能目标

B.方法与过程目标

C.情感态度价值观目标

D.课堂教学目标

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