A解析:单目的++运算优先级高于双目的+运算,不过++的结合性是自右向左的,而+是自

题型:单项选择题

问题:


A
解析:单目的++运算优先级高于双目的+运算,不过++的结合性是自右向左的,而+是自左至右的,所以上面的两个表达式都是先计算a+b的值之后,a再自加1。

考点:计算机等级考试C++二级C++笔试1
题型:单项选择题

牙本质龋时,最先发生的牙本质的变化是

A.崩解

B.小管扩张

C.脱钙

D.脂肪变性

E.特发性剥脱性龈炎

题型:单项选择题

阅读理解。

     Research has shown that music has an important effect on one's body and psyche (心灵). In fact,

there is a growing field of health care known as music therapy, which uses music to treat diseases. Even

hospitals are beginning to use music therapy. This is not surprising, as music affects the body and mind in

many powerful ways.

     Research has shown that quick music can make a person feel more alert, while slow music can

produce a calm, deep thinking state. Also, research has found that music can change brainwave activity

levels. This can help the brain to change speeds more easily on its own as needed, which means that

music can bring lasting benefits to your state of mind, even after you've stopped listening.

     Breathing and heart rates can also be influenced by music. This can mean slower breathing, slower

heart rate. This is why music and music therapy can help reduce the damaging effects of long-term stress,

greatly promoting (促进) not only relaxation, but health.

     Music can also be used to bring about a more positive state of mind by helping to keep worries away. Music has also been found to bring many other benefits, such as lowering blood pressure and reducing the risk of strokes. It is no surprise that so many people are considering music as an important tool to help the body become or stay healthy.                      

1. What can we infer about music therapy?        

A. It is a type of music.

B. It is a research about music.

C. It is a kind of musical effect on diseases.

D. It is the use of music method to help treat diseases.

2. According to the second paragraph, we can know that ________.

A. music with different speeds has different effects

B. quick music is not good for one's health

C. slow music can help one to think more calmly and slowly

D. music will have less benefit after one stops listening

3. The reason why music can help deal with stress is that ________.

A. it is used by many hospitals

B. it can help change brainwaves

C. it does good to breathing and heart rates

D. it can bring a more positive state of mind

4. According to the passage, music can help deal with all the following EXCEPT ________.

A. nervousness          

B. mind illnesses

C. strokes          

D. high blood pressure     

题型:单项选择题

不属于中东产油国的是(  )

A.沙特阿拉伯

B.伊朗

C.伊拉克

D.以色列

题型:单项选择题

最近,一项关于体重与死亡率的研究让人________。该研究认为,按照国际________的体重评价标准,超重人群比体重正常人群在同一时期内的死亡率要低6%。这一结果一经公布,立即掀起了轩然大波,因为大众媒体数十年来一直 的观念是,超重甚至是适度的体重增加都不利于健康。依次填入划横线部分最恰当的一项是:

A.啼笑皆非 公认 同意

B.出乎意料 通行 宣传

C.匪夷所思 现行 强调

D.无话可说 认可 灌输

题型:单项选择题

试述大肠杆菌病的流行特点

更多题库