有以下程序#include int i;int len(char *s){ w...

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有以下程序#include int i;int len(char *s){ while(*s++){ i++; } return i;}执行以下程序片段 char s[]="x0123yz";printf("%d %d",len(s),len(s+1));程序运行后的输出结果是

7 7

7 6

13 6

不确定

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【简答题】阅读理解 Living in a green area can make you live longer,according to research published today.The research also shows that the difference in life expectancy (预期寿命) between rich and poor becomes smalle...

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【判断题】肺泡表面活性物质有降低肺泡表面张力，稳定肺泡大小的作用。

正确

错误

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【单选题】下列对肺泡表面张力的描述正确的是（）

肺泡表面液体层的分子间引力所产生

肺泡表面活性物质所产生

肺泡弹性纤维所产生

肺泡内皮细胞所产生

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【判断题】肺泡表面活性物质来源于Ⅰ型肺泡细胞。( )

正确

错误

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【单选题】Why does the author say that the important part of this research began when two Harvard researchers were brought in?

Until then the research had been poorly conducted.

They took a multifaceted approach.

The results of the original research did not make sense.

Harvard had a good reputation in conducting research.

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【单选题】______the South Korean conglomerates, few other firms have the research and development resources to compete in these areas.

In case of

In regard to

With the exception of

With the purpose of

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【简答题】肺泡表面活性物质有何作用?

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【单选题】Research discovered that plants infected with a virus give off a gas that______ disease resistance in neighboring plants.

contracts

activates

maintains

prescribes

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【简答题】A．Research foreign policy issues B．Communicate with the aides of other congressional representatives C．Help citizens solve problems D．Oversee local elections

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【判断题】肺泡表面活性物质主要由型肺泡细胞分泌。()

正确

错误

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【判断题】肺泡表面活性物质有降低肺泡表面张力，稳定肺泡大小的作用。

正确

错误

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【单选题】下列对肺泡表面张力的描述正确的是（）