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the teacher has a word in his mind and asks students to guess by asking only yes／no questions until they make the correct guess. in this way, the teachers’ role is a／an ___________.
A. organizer
B. participant
C. resource-provider
D. assessor
参考答案
更多 “ the teacher has a word in his mind and asks students to guess by asking only yes／no questions until they make the correct guess. in this way, the teachers’ role is a／an ___________. A. organizerB. participantC. resource-providerD. assessor ” 相关考题
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Originally, the World-Wide Web was designed as information medium for （）research teams. A deliberately simple implementation model was chosen to make it as simple as possible for authors to （）documents to the web, and to （）these in the sense of updating content. This implementation model is centered around the notion of resources, usually file-based. For the （）intended use of the web, resources presented a useful abstraction, as they related to relatively self-contained chunks of information such as research publications and（）pages. Such chunks of information typically could be set up and maintained independently of other resources, so that resources were the appropriate abstraction for composition and modification. （）A. all B. world C. distributed D. internet （）A. contribute B. write C. hand D. make （）A. maintain B. consist C. modify D. correct （）A. originally B. before C. success D. reform （）A. some B. home C. company D. study
考题
a language lesson plan usually has the following components: background information, teaching aims, language contents and skills, stages and procedures, teaching aids, assignments and _________.：A. teachers’ after-lesson reflectionB. students’ after-lesson reflectionC. teachers’ after-lesson feedbackD. students’ after-lesson feedback
考题
－－The classroom is not big enough for 50 students.－－ Yes, I agree. It‘s ______.
A.too smallB.no bigC.not small enough
考题
A:The classroom is not big enough for 50 students. B:Yes, I agree. It's ( ).A. too smallB. no enoughC. not enough bigger
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假定学生Students和教师Teachers关系模式如下所示： Students（学号，姓名，性别，类别，身份证号） Teachers（教师号，姓名，性别，身份证号，工资） a．查询在读研究生教师的平均工资、最高与最低工资之间差值的SQL语句如下： SELECT （ ） FROM Students，Teachers WHERE（ ）；b.查询既是研究生，又是女性，且工资大于等于3500元的教师的身份证号和姓名的SQL语句如下： （SELECT 身份证号，姓名 FROM Students WHERE（ ）） （ ） （SELECT身份证号，姓名 FROM Teachers WHERE（ ））A.AVG（工资） AS 平均工资，MAX（工资）-MIN（工资） AS差值 B.平均工资 AS AVG（工资），差值 AS MAX（工资）-MIN（工资） C.AVG（工资） ANY 平均工资，MAX（工资）-MIN（工资） ANY 差值 D.平均工资 ANY AVG（工资），差值 ANY MAX（工资）-MIN（工资） A.Students.身份证号 = Teachers.身份证号 B.Students.类别 =研究生 C.Students.身份证号 = Teachers.身份证号 AND Students.类别 =研究生 D.Students.身份证号 = Teachers.身份证号 OR Students.类别 =研究生 A.工资=3500 B.工资=3500 C.性别=女 AND 类别=研究生 D.性别=女 AND 类别=研究生 A.EXPERT B.INTERSECT C.UNION D.UNIONALL A.工资=3500 B.工资=3500 C.性别=女 AND 类别=研究生 D.性别=女 AND 类别=研究生
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AnOrganization2010has2MailboxServersnamedServer1andServer2.EachonehasMailboxDatabaseand1PublicFolderDatabase.AlluserscreatePublicFoldersonServer1only.YouneedtoensurethatalluserscreatePublicFolderonServer2only.Whatshouldyoudo？（）A.MoveallMailboxestoServer2B.RemoveallPublicFolderreplicasfromServer1C.ModifypropertiesofbothMailboxDatabasesD.ModifypropertiesofbothPublicFolderDatabases
考题
假定学生Students和教师Teachers关系模式如下所示：Students（学号,姓名,性别,类别,身份证号）Teachers（教师号,姓名,性别,身份证号,工资）a．查询在读研究生教师的平均工资、最高与最低工资之间差值的SQL语句如下：SELECT（ ）FROM Students,TeachersWHERE（请作答此空）；b．查询既是研究生，又是女性，且工资大于等于3500元的教师的身份证号和姓名的SQL语句如下：（SELECT身份证号,姓名FROM StudentsWHERE（ ））（ ）（SELECT身份证号,姓名FROM TeachersWHERE（ ））;A.Students.身份证号=Teachers.身份证号
B.Students.类别='研究生'
C.Students.身份证号=Teachers.身份证号AND Students.类别='研究生'
D.Students.身份证号=Teachers.身份证号OR Students.类别='研究生'
考题
假定学生Students和教师Teachers关系模式如下所示：Students（学号,姓名,性别,类别,身份证号）Teachers（教师号,姓名,性别,身份证号,工资）a．查询在读研究生教师的平均工资、最高与最低工资之间差值的SQL语句如下：SELECT（ ）FROM Students,TeachersWHERE（ ）；b．查询既是研究生，又是女性，且工资大于等于3500元的教师的身份证号和姓名的SQL语句如下：（SELECT身份证号,姓名FROM StudentsWHERE（ ））（请作答此空）（SELECT身份证号,姓名FROM TeachersWHERE（ ））;A.EXCEPT
B.INTERSECT
C.UNION
D.UNIONALL
考题
将students中的列变量重新命名为： （1）id_number, name, gender, score, has_graduate （2）选出Bob的性别gender，并存入变量bob_gender （3）选出列has_graduate，并存入向量status （4）创建数据框part_df，其中包含前三个学生的所有信息 （5）创建数据框rest_df，包含其余学生的所有信息
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