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【判断题】
革兰阳性菌的肽聚糖单体由聚糖骨架及四肽侧链组成,没有五肽交联桥A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】What could be said about the third paragraph of the passage?
A.
It is a flashback of the tall buildings.
B.
It is about the history of skyscrapers.
C.
It is a comparison of skyscrapers.
D.
It is a description of a skyscraper race.
【单选题】以下程序的执行结果是 (单选题) flag : for ( int i=1;i<5;i++){ for ( int j=1;j<5;j++){ if (j==i){ break flag; } System. out .print(j+" "); } }
A.
无任何结果输出
B.
输出：1
C.
输出：1 2 3 4
D.
输出：1 2 2 3 3 3 4 4 4 4
【单选题】消费价格指数反映了()。
A.
城乡商品零售价格的变动趋势
B.
城乡居民购买生活消费品价格的变动趋势
C.
城乡居民购买服务项目价格的变动趋势
D.
城乡居民购买生活消费品和服务项目价格的变动趋势
【单选题】What does “Qué tal” mean?
A.
How are you?
B.
Have you eaten yet?
C.
How old are you?
D.
How is your health?
【单选题】What does the speaker imply about the situation of American families at the end of the talk?
A.
There will be more single parent families.
B.
More families will break up.
C.
There will appear the increase of birthrate and decrease of divorce rate.
D.
There will be less divorce and higher birth rate.
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