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【简答题】
A new research study has found that, ____1______ what parents might believe, there is an enormous gap between what they think their children are doing online and what is ___2_____ happening. In one part of the study, over 500 children from a variety of ages and backgrounds were asked if they gave out personal information online. 73% said they did. The parents of _____3_____ children believed that only 4% of their children did so. The children were also asked if they had made face-to-face_____4_____ with strangers that they had met online. 36% from the high school group admitted to meeting with a stranger they had met online. Nearly 40% of these children ____5_____to speaking with stranger regularly. Fewer than 9% of the parents knew that their children had been meeting with strangers. Another part of study found that 30% of the children between age of 9 and 18 delete the search history from their browsers in an_____6_____ to protect their privacy from their parents. Common filtering software may ____7_____be effective, since children will access what they are looking for else-where---at a friend's house, an Internet cafe, or school. One problem lies in the fact that parents don't know much about using popular online software and chat programs, and_____8_____ to have no clue about what is really happening online. This lack of knowledge on the parents' part may be no_____9____from the situation before the arrival of the Web. Parents don't know what their children are doing on the Net, in the same_____10_____ that they don't know what goes on at class, parties or clubs. (admitted; same; despite; really; attempt; not; manner; equal; regardless; certainly; tend; contact; different; given; obviously)
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【单选题】我国土壤质地分类标准将土壤分为()
A.
砂土、壤土和黏土三类十一级
B.
砂土、壤土、黏壤土和黏土四类十二级
C.
砂粒、粉粒和黏粒三类十二级
D.
砂土、壤土和黏土三类九级
【简答题】土壤分为一类土、二类土、三类土和四类土。在城市市区和市郊区一般采用( )类土。
【判断题】普氏分类法将土壤和岩石划分为一二类土、三类土、四类土、软石、次坚石、普坚石和特坚石等七大类。
A.
正确
B.
错误
【单选题】下列对量变质变说法正确的是?
A.
量变到一定的程度上会引起质变
B.
量变到质变是有条件的
C.
一味地进行量的积累并不一定引起质变
D.
以上说法都正确
【简答题】如图3所示,人工开挖一矩形基坑,已知土壤类别为四类土,开挖时左右两侧放坡,上下两侧支挡土板,挖土平均厚度为2.20 m,具体尺寸如下图所示。按《云南省建筑工程消耗量定额》计算人工挖基坑的定额工程量和省定额合价。 《云南省建筑工程消耗量定额》土方工程均按三类土编制,如实际是一、二、四类土时,分别按三类土相应定额子目乘以下列系数。
【单选题】以下对沉降缝的处理正确的是( )
A.
主体断开,基础不断开
B.
主体不断开,基础断开
C.
主体和基础均断开
D.
主体和基础均不断开
【单选题】以下对沉降缝的处理正确的是
A.
主体断开,基础不断开
B.
主体不断开,基础断开
C.
主体和基础均不断开
D.
主体和基础均断开
【判断题】八选一数据选择器 74LS151 有三个地址输入端 A 2 、 A 1 、 A 0 ,八个数据输入端 D 0 ~D 7 , 一个数据输出端 Y 。
A.
正确
B.
错误
【单选题】听力原文:M: Hey, Jane. What's so interesting? W: What? Oh, hi, Tom. I'm reading this fascinating article on the societies of the Ice Age during the Pleistocene period. M: The Ice Age? There weren't any so...
A.
They lived in caves.
B.
They traveled in groups.
C.
They had an advanced language.
D.
They ate mostly fruit.
【多选题】下列关于量变质变规律说法正确的有
A.
量变仅指事物数量的变化
B.
凡是事物的变化都是质变
C.
量变是质变的必要准备
D.
质变是量变的必然结果
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