关于被私有访问控制符private修饰的成员变量，下列说法正确的是( )。A．可以
题型：单项选择题
问题：
关于被私有访问控制符private修饰的成员变量，下列说法正确的是( )。
A．可以被三种类所引用：该类自身、与它在同一个包中的其他类、在其他包中的该类的子类
B．可以被两种类访问和引用：该类本身、该类的所有子类
C．只能被该类自身所访问和修改
D．只能被同一个包中的类访问
题型：单项选择题
阅读理解
The nine-year-old Marc Yu is called Little Mozart. He is too short to reach the pedals (踏板) of a piano. Marc, from California, USA, says, “The problem is that my legs aren't straight enough, so I have to get very close to the piano.”
Marc's 34-year-old mother played Beethoven's CDs to him when she was pregnant (怀孕的). Marc started playing the piano at a birthday party when he was only two. While the other children were singing “Twinkle, twinkle, little star …”, he walked over to the piano and started playing the song. It astonished his mother, because that was the first time he'd been near a piano. Marc gave his first public performance, playing Beethoven, at six, the same age as Mozart. After that concert, Marc won a ￡225,000 university scholarship (奖学金).
At present he practices the piano eight hours a day. He also studies part-time at the famous Colbum Music School in Los Angeles, and flies once a month to China for lessons at Shanghai Music School. Marc says, “I like playing the piano because it makes me have a lot of different feelings - sadness, excitement, happiness and so on. I like playing difficult pieces, especially those that my teacher says I shouldn't.”
根据短文内容，选择最佳选项。
1. The nine-year-old Marc Yu is from .
A. China
B. France.
C. Canada
D. the United States
2. Marc played the piano at the age of for the first time.
A. two
B. f
ive
C. six
D. nine
3. According to the passage, the underlined word “astonished” means “ ” in Chinese.
A. 使……理解
B. 使……担心
C. 使……惊奇
D. 使……难过
4. At present Marc practices playing the piano .
A. once a month
B. eight hours a day
C. in his free time
D. only on weekends
5. What Marc says in the last paragraph tells us that .
A. he likes challenges
B. he doesn't like challenges
C. he is afraid of challenges
D. he wants to give up music