题目内容

保护接零系统的安全原理是()。

A. 限制短路电流
B. 迅速切断电源
C. 限制故障电压
D. 提高绝缘水平

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The little boy asked the minister's number.

A. Right.
B. Wrong.
C. Doesn't say.

He brought a picture of telephone to the church once.

A. Right.
B. Wrong.
C. Doesn't say.

某软件开发商开发一种新软件,在研究过程中共花费人工费260000元;软件开发过程中又发生材料费30000元,人工费170000元,假定开发过程中发生的支出符合资本化条件。开发成功后,经申请获得专利权,支付申请专利费用32000元,另发生广告支出70000元。则该专利权的入账价值为()。

A. 232000元
B. 492000元
C. 302000元
D. 270000元

The sweetness of the grapefruit is determined by______.

A. lycopene
B. the length of time the fruit is exposed to the sun
C. the length of time the fruit is hanging on a tree
D. the specific nutrient the fruit takes from the soil

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