In what way is Chusovitina different from her competitors?
A. She has competed in two Olympic Games.
B. She doesn’t represent any country.
C. She is older.
D. She has a son.
Why did Chusovitina move to Germany?
A. To receive better training.
B. To compete in the Olympics.
C. To coach the German gymnastics team.
D. To get medical treatment for her son.
What is Chusovitina’s dream?
A. To win her sixth medal.
B. To enter the vault final.
C. To win a medal for her home country.
D. To get money for her son’s treatment.
对放射性外照射的防护措施包括（ ）。
A. 距离防护
B. 时间防护
C. 屏蔽防护
D. 防治呼吸道吸收
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