计算:2sin30°+3tan45°-cos60°=( )。

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问题:

计算:2sin30°+3tan45°-cos60°=(    )。

考点:锐角三角函数的定义
题型:填空题
阅读下面的短文,根据短文内容完成下面表格。
Every student can manage time to get good grades at school. However, how can you manage your time more efficiently(有效地) to study well? Well, you can arrange for time each day to read over notes. You needn’t study each of your subjects every day, but studying something every day will help you improve your grades. Take notes as you study, so you can use those notes to shorten your study time later. Even though studying is important, it doesn’t need to control your time.
After-school activities are an important part of school life for many students. The journey toward good grades doesn’t mean you have to give up these activities. Instead, you need to find your personal balance between study time and extra activities. For example, if you play on the baseball team and work on the school paper, you may find that two activities are too much, and that you don’t have enough time to study and take part in these activities. If this is the case, you need to prioritize(区分优先次序) and choose just one activity. Therefore, you’ll have time to study.
As you get closer to graduation, it becomes easier to think that class attendance isn’t important, especially later in college. Other activities, such as hanging out with friends and even working, can feel more important. However, class time is the time when you can ask questions and learn more about the material. Attending your classes regularly makes you get more information and helps you get better grades.
Any spare time you have during the day can be used for studying. For example, if you take a bus, use that time to read over your notes, or read your text. Any time in which you would just sit and wait is a good time to work on school work, so you can improve your grades. However, you need to learn to balance school work and relaxation time, so you don’t burn out.
                ____小题1:___ of managing  time to get good grades
Paragraph  outlines
Supporting details
____小题2:_some time taking notes every day
It is necessary for you to study something every day.
___小题3:___notes while studying can help save your study time later.
___小题4:__study time and after-school activities
You needn’t __小题5:_after-school activities just to study for good grades.
You shouldn’t prevent after-school activities affecting your study.
You can choose to do the activity that you think is the most____小题6:___.
Attend class __小题7:__
You shouldn’t be absent from class because of some activities.
You should make use of class time to learn ___小题8:_____.
Use __小题9:__time
You can study while taking __小题10:____.
You can do school work when waiting to do something.
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下列关于诉讼时效起算的说法中,错误的是()。

A.定有履行期限的债务的请求权,当事人约定债务分期履行的诉讼时效应当分期分别起算

B.未定有履行期限的债务的请求权,债权人第一次要求债务人履行义务时就被债务人明确拒绝的,诉讼时效从债务人明确拒绝之日起算

C.人身伤害损害赔偿的诉讼时效期间,伤害明显且侵害人明确的,从受伤之日起算

D.请求他人不作为的债权的请求权。诉讼时效从义务人违反不作为义务时起算

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以下是青色和黑色共同所主之病证的是

A.寒证

B.水饮

C.惊风

D.肾虚

E.气滞

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下列关于推理情境阐述正确的是()

A.肯定前件会导致正确的结论

B.肯定后件会导致不正确的结论

C.否定前件会导致不正确的结论

D.否定后件会导致不正确的结论

题型:填空题

引进高速缓冲存储器(Cache)技术是为了解决( )之间速度不匹配的问题。

A.内存与外存

B.CPU与内存

C.CPU与外存

D.主机与外部设备

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