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Carefree, happy-go-lucky, and running wild are just some of the familiar phrases that come to mind when we think about childhood. Most of us have a lovely picture of what life is like for children. What could children possibly have to worry about In the early l980’s, many medical experts believed that children were unable to experience depression (忧郁). But the fact is that children do have plenty of {{U}}cares.{{/U}} At least 2% of children under 12 struggle with depression and by teenage years this has risen to 5% or 1 in 20. That’s at least one depressed child in every classroom. Depression, whether in grown-ups or children, is poorly understood. Some children are more at risk, such as those who are ill or who come from a broken family. But there are also many simpler worries, such as exam fears. It’s not always easy to notice A. medical treatment needed for illness B. interests shared by children C. attention given by parents D. worries felt by children 查看答案 更多"{{B}}C{{/B}} Carefree, "的相关试题: [单项选择]{{B}}C{{/B}} Carefree, happy-go-lucky, and running wild are just some of the familiar phrases that come to mind when we think about childhood. Most of us have a lovely picture of what life is like for children. What could children possibly have to worry about In the early l980’s, many medical experts believed that children were unable to experience depression (忧郁). But the fact is that children do have plenty of {{U}}cares.{{/U}} At least 2% of children under 12 struggle with depression and by teenage years this has risen to 5% or 1 in 20. That’s at least one depressed child in every classroom. Depression, whether in grown-ups or children, is poorly understood. Some children are more at risk, such as those who are ill or who come from a broken family. But there are also many simpler worries, such as exam fears. It’s not always easy to notice A. It was full of happiness B. It was hard to control C. It was marked with depression D. It had few health problems 查看答案 [单项选择]设关系R： A B C a b c d c c c b d 经操作ЛA，B(σC=’c’(R))的运算结果是( )。(Л为“投影”操作符，σ为“选择”操作符) A. A C a b d c c d 查看答案 [单项选择] Carefree, happy-go-lucky, and running wild are just some of the familiar phrases that come to mind when we think about childhood. Most of us have a lovely picture of what life is like for children. What could children possibly have to worry about In the early l980’s, many medical experts believed that children were unable to experience depression (忧郁). But the fact is that children do have plenty of cares. At least 2% of children under 12 struggle with depression and by teenage years this has risen to 5% or 1 in 20. That’s at least one depressed child in every classroom. Depression, whether in grown-ups or children, is poorly understood. Some children are more at risk, such as those who are ill or who come from a broken family. But there are also many simpler worries, such as exam fears. It’s not always easy to notice depression in children, partly because they are not so able as adults to express their feelings and partly because they are more li A. It was full of happiness. B. It was hard to control. C. It was marked with depression. D. It had few health problems. 查看答案 [单项选择]C2b4b3b A. C5转化酶 B. 膜攻击复合体 C. 阻断C3转化酶的形成 D. 干扰C9与C8的结合 E. 过敏毒素 查看答案 [单项选择]有A． B．c三个数，已知a×b=24，a×c=36，b×c=54，求a+b+c= A. 23 B. 21 C. 19 D. 17 查看答案 [填空题]有如下程序: a=1:b=2:c=3 a=a+b:b=b+c:c=b+a If a＜ ＞3 Or b＜ ＞3 Then a=b-a:b=c-a:c=b+a End If Print a+b+c 运行后，输出的结果是 【15】 。 查看答案 [单项选择]有A、B、C三种投资产品，其收益的相关系数如下： A B C A 1 B 0.1 1 C 0.8 -0.8 1 若必须选择两个产品构建组 A. B、C组合是风险最佳对冲组合 B. A、C组合风险最小 C. A、B组合风险最小 D. A、C组合风险最分散 查看答案 [单项选择]有三个关系R、S和T如下。 R B C D a 0 k1 b 1 n1 S B C D f 3 h2 a 0 k1 n 2 x1 T B C D a 0 k1 由关系R和S通过运算得到关系T，则所使用的运算 A. 并 B. 自然连接 C. 笛卡儿积 D. 交 查看答案 [填空题]有如下程序： a=1:b=2:c=3 a=a+b:b=b+c:c=b+a If a＜＞3 Or b＜＞3 Then a=b-a:b=c-a:c=b+a End If Print a+b+c 运行后，输出的结果是 【15】 。 查看答案 [单项选择]已知三个质数a、b、c满足a+b+c+abc=99，那么|a-b|+|b-c|+|c-a|的值等于（）。 A. 16 B. 24 C. 25 D. 34 E. 32 查看答案 [单项选择]设有如下三个关系表： R A m n S B C 1 3 T A B C m 1 3 m 1 3 下列操作中正确的是( )。 A. T=R∩S B. T=R∪S C. T=R×S D. T=R/S 查看答案 [单项选择]已知a、b、c、d都是正整数，且a＞b＞c＞d，a+b+c+d=2004，2a-2b+2c-2d=2004，则a+d的最小值是( )。 A. 1502 B. 1005 C. 1004 D. 999 查看答案 [填空题]若a+b+c，b+c-a，c+a-b，a+b-c依次成等比数列，公比为q，则q3+q2+q-1=（）。 查看答案 我来回答: 提交 最新试题 ●    安全脆弱性是产生安全事件的（）。 ●    关于远程学习的表示不正确的是（） ●    不经过一步一步思考而突如其来的领悟与理解属于（） ●    “五不让”即：（）； ●    下列关于前列腺癌的说法不正确的是：（） ●    [单选题]1.48校车行驶线路、开行时间、停靠站点发生变化的，经_____批准后，重新领取校车标牌。 网站地图 我要搜题网  版权所有  ©2024  湘ICP备18016427号   购买搜题卡查看答案 [会员特权] 开通VIP， 查看 全部题目答案 [会员特权] 享免全部广告特权 推荐91天 ¥36.8 ￥80元 31天 ¥20.8 ￥40元 365天 ¥88.8 ￥188元 请选择支付方式 微信支付 支付宝支付 点击支付即表示同意并接受了《购买须知》 立即支付 系统将自动为您注册账号 已有账号登录 找回账号密码 请使用微信扫码支付 订单号： 截图扫码使用小程序[完全免费查看答案] 前往小程序 请不要关闭本页面，支付完成后请点击【支付完成】按钮 支付完成 取消支付 恭喜您，购买搜题卡成功 系统为您生成的账号密码如下： 账号 密码 重要提示：请拍照或截图保存账号密码！ 我要搜题网官网：https://www.woyaosouti.com 我已记住账号密码