为防止隧道衬砌施工中裂缝的产生，衬砌厚度应根据（）确定。A.衬砌混凝土的强度要求 B 发布时间：2017-07-13 02:59 │ 来源：www.tikuol.com 题型：单项选择题 问题： 为防止隧道衬砌施工中裂缝的产生，衬砌厚度应根据（）确定。A.衬砌混凝土的强度要求B.衬砌混凝土的坍落度要求C.围岩类别、形状、结构D.超挖和欠挖情况
题型：单项选择题 任务型读写。请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。 注意：每个空格只填1 个单词。 It's common for kids of all ages to experience school anxiety-schoolrelated stress. This is often most apparent at the end of summer when school is about to start again, but it can occur yearround. Where does the stress and anxiety come from? Teachers A good experience with a caring teacher can cause a lasting impression on a child's life-so can a bad experience. While most teachers do their best to provide students with a positive educational experience, some students are better suited for certain teaching styles and classroom types than others. If there's a mismatch (不协调) between student and teacher, a child can form lasting negative feelings about school or his own abilities. Friends Friends can also be a source of stress. Concerns about not having enough friends, not being in the same class as friends, not being able to keep up with friends in one particular area or another, and interpersonal conflicts are a few of the very common ways kids can be stressed by their social lives at school. Dealing with these issues alone can cause anxiety in even the most confident kids. Bullies (欺凌弱小者) Things have changed in the world of bullies since I was a kid.The good news is that teachers and parents are paying more attention. Many schools now have antibullying programs and policies. Though bullying does still happen, help is generally more easily accessible than before. The bad news is that bullying has gone hightech. Many students use the Internet, cell phones and other media devices to bully other students, and this type of bullying often gets very aggressive. One reason is that bullies can be anonymous (匿名的) and enlist other bullies to make their targets miserable.Another reason is that they don’t have to face their targets. So it’s easier to get rid of any empathy that they may otherwise feel. There are ways to fight against “cyberbullying”， but many parents aren’t aware of them-and many bullied kids feel too overwhelmed to deal with the situation.Passage outlineSupporting detailsA general 1. ________◇Kids of all ages are 2. ________ to experience schoolrelated stress.◇School anxiety may happen all year round,3. ________when the new school year begins.4. ________ofschool anxietyTeachersThe school anxiety from a bad experience with a teacher can 5. ________for a long time.FriendsThe problems such as fearing to fall 6. ________friends and being afraid of not having enough friends should be 7. ________ together but not alone.BulliesGood news：·School bullies are being paid more attention to than before.·Help is more easily 8. ________as most schools have antibullying programs and policies. Bad news： ·Modern 9. ________has made school bullies more aggressive. ·Many parents don't 10. ________the importance of fighting against "cyberbullying." 查看答案
题型：单项选择题 下列关于数据的逻辑结构的叙述中，哪一条是不正确的 A．数据的逻辑结构是数据间关系的描述B．数据的逻辑结构反映了数据在计算机中的存储方式C．数据的逻辑结构分为线性结构和非线性结构D．队列属于线性结构 查看答案