婴幼儿肺部炎症，早期出现胸腔积液或液气胸常提示以下何种病原菌所致（） A.链球菌

请认真阅读下面这篇文章，根据要求写一篇短文。

In most schools, students in one class have the same schedule (时间表). But at Beijing National Day School, each of the 4,174 students can build their own class timetable.

The school has used this alternative (可供选择的) education system since 2011. Students choose courses of different difficulty levels and categories (类别) based on their interests and abilities. They don’t have fixed classrooms or regular (固定的) classmates. Instead, they have more than 400 courses and 272 school clubs to choose from. The school hopes students can become masters of their own study and find their potential (潜能).

Students also like the system. Tian Yatong, 14, said she learns to be responsible (负责任的) for herself through the system.

She has chosen level 2 (the medium level) for math based on her current (当前的) abilities even though she has passed the level 3 tests.

“I like the teacher of level 2. I think it works best for me,” said Tian.

The system also “opens a new world” for students, said 13-year-old Li Zixuan.

Li was amazed to find that she could learn cooking, sewing , making films and many other interesting things at the school.

“You’re sure to find one that interests you,” Li said.

Li has chosen a cooking course this term. Now she can make different cakes at home for her parents.

“I may become a pastry (糕点) cook one day. Who knows?” Li said.

要求：

根据上文简述这种新的教育系统的两点优势

你如何看待这种新的教育系统

如果你有机会在这样的学校学习，你想选择什么课程和什么样的俱乐部，并说出原因。

注意：

短文必须包括以上要点，要求语句通顺，意思连贯。

词数90词左右。

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乙数比甲数少B，甲数是X，乙数是______，如果乙数是X，甲数是______．

发为血之余

单采用批量拣货作业时，拣货完成后还要进行（）。

A、分批

B、分类

C、集中

D、包装

伟达公司2009年共实现税前收入总额1800万元(其中包括产品销售收入1600万元，国库券利息收入200万元)，发生各项成本费用共计1250万元。其中：合理的工资薪金总额175万元，业务招待费90万元，职工福利费45万元，职工教育经费3万元，工会经费9万元，税收滞纳金15万元，提取的各项准备金支出100万元(均未经税务部门批准)，其他成本费用支出均符合税法规定。(企业所得税税率为25%)
要求：根据资料，回答问题：

关于所得税的计算，下列说法错误的是( )。

A．伟达公司的应纳税所得额为573万元

B．伟达公司的应纳税所得额为458万元

C．伟达公司的应纳所得税为114.5万元

D．伟达公司的应纳所得税为143.25万元