下列关于裘布依假定描述正确的选项为( )。A.忽略地下水渗透流速在水平向的分量 B

题型:单项选择题

问题:

下列关于裘布依假定描述正确的选项为( )。

A.忽略地下水渗透流速在水平向的分量

B.地下水过水断面为一曲面

C.地下水过水断面可以视为一水平面

D.忽略地下水渗透流速在垂直向的分量

考点:注册公用设备工程师给水排水专业勘察设计注册公用设备工程师给水排水专业基础
题型:单项选择题

It’s important __________.

A.for us to learn English well

B.to us to learn English well

C.for us learning English well

D.of us to learn English well

题型:单项选择题

短文改错

文章共有10处错误。每句最多两处。多者从第11处起不计分。

1. 增加:缺词处加∧,并在下面写出该词。

2. 删除:多余的词用╲划掉。

3. 修改:错词下面划一横线,并在下面写出修改后的词。

注意:1.每处错误及其修改均仅限一次;

2.只允许修改10处,多者(从第11处起)不计分。

Li Ming is a student who have been living in Shanghai since he was born.But his grandfather lives in Taiwan, because he went to Taiwan after Shanghai was liberated.He is a merchant.For about half a century, Li Ming’s family have no idea where she lives.They miss him very much.Fortunate, a letter from his grandfather reached them this October, which said that his grandfather would be back Shanghai on December 24th.Li Ming’s parents were such excited about the news that they didn’t sleep well for several nights.So did Li Ming.The day finally came.In December 24th, the family of Li Ming are on their way to the airport.When they met at the last, they gave his grandfather a big hug, tears in their eyes.They got together.

题型:单项选择题

胰岛素降血糖的作用是

A.抑制蛋白质合成
B.刺激胰岛B细胞释放胰岛素
C.促进葡萄糖分解
D.L抑制糖原分解和异生
E.增强胰岛素的作用

题型:单项选择题

Visual FoxPro子类是在已有类的基础上进行修改而形成的类,子类对父类的方法和属性可以【 】。

题型:单项选择题

( )是系统软件的核心

A.语言处理程序

B.数据库管理系统

C.支持服务程序

D.操作系统

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