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【简答题】
Read the story. Then read the statements and circle T(True) or F(False). A Vacation for Your Head If you care about your health, you probably take good care of your body. You eat right and exercise regularly. You take vitamins and try to get enough sleep. You keep your body healthy, but what do you do for your mind? How do you feed it? How do you relax your mind? Some people arrange to spend some time in a monastery. Many different religious groups allow visitors to stay in their monasteries for a few days or even a few weeks. Monastery life is very different from everyday life. First of all , The only things you need to do during your visit are eating and sleeping. Meals are served at regular hours. Since many monks never speak in public, life in a monastery is very quiet and peaceful. Guests are often invited to stop talking completely. And because they don’t have to do anything or say anything, guests can relax completely. Could you go without talking for several days? Are you ready for a really different vacation? A monastery visit might be the healthiest vacation you could take. 1. T F Monasteries allow visitors to stay for a few weeks. 2. T F Monastery life is like everyday life. 3. T F You can have your meals at any hour you wish. 4. T F Many monks do not talk in public.
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【单选题】使用SQL语句向学生表S(SNO,SN,AGE,SEX)中添加一条新记录,字段学号(SNO)、姓名(SN)、性别(SEX)、年龄(AGE)的值分别为0401、王芳、女、18,正确的命令是
A.
APPEND INTO S(SNO,SN,SEX,AGE)values(‘0401’,‘王芳’,‘女’,18)
B.
APPEND S values (‘0401’,‘王芳’,‘女’,18)
C.
INSERT INTO S(SNO,SN,SEX,AGE)values (‘0401’,‘王芳’,‘女’,18)
D.
INSERT S values(‘0401’,‘王芳’,18,‘女’)
【单选题】使用SQL语句向学生表S(SNO,SN,AGE,SEX)中添加一条新记录,字段学号(SNO)、姓名(SN)、性别(SEX)、年龄(AGE)的值分别为0401、王芳、女、18,正确命令是______。
A.
APPEND INTO S (SNO,SN,SEX,AGE)VALUES('0401','王芳','女',18)
B.
APPEND S VALUES('0401','王芳',18,'女')
C.
INSERT INTO S(SNO,SN,SEX,AGE)VALUES('0401','王芳','女',18)
D.
INSERT S VALUES('0401','王芳',18,'女')
【多选题】胶带输送机的驱动有单滚筒驱动和( )滚筒驱动。
A.
B.
两 c三 D多
【单选题】多媒体和电视的区别在于( )。
A.
有无声音
B.
有无动画
C.
有无图像
D.
有无交互性
【简答题】某未知化合物的分子式为 C 9 H 12 ,核磁共振氢谱如图 所示,已知 δ1.20 ( 6H , d )、 δ2.87 ( H , sep )、 δ7.28 ( 5H , m )。试推测其结构。要有分析过程。 2.JPG
【单选题】多媒体和电视的区别在于( )。
A.
有无动画
B.
交互性
C.
有无图像
D.
有无声音
【简答题】《有机化学基础》 (1)具有明显现象的官能团特征反应常被用来鉴定化合物。 ①欲区分CH 2 =CH 2 和CH 3 CH 3 ,应选用 __ (填字母)。 a.NaOH溶液       b.溴水    c.银氨溶液 ②欲区分HCHO和HCOOH,应选用 _ (填字母)。 a.KMnO 4 溶液    b.银氨溶液    c.Na 2 CO 3 溶液 ③欲区分 和 ,应选用 ___ (填字母)。 a...
【简答题】(14分)A、B、C、D、E、F六种的转化关系如右图,其中A为应用最广泛的金属,氧化物E既能与盐酸反应,又能与NaOH溶液反应。X、Y属于同一周期,且核电荷数相差4。 上述转化中某些反应条件未指出,请回答下列问题: (1)指出C中的化学键类型: ;D的化学式为 ;元素X、Y的原子半径大小顺序是 (用元素符号表示)。 (2)E与NaOH溶液反应的离子方程式为 。 (3)反应A+H 2 O→C+D的化...
【单选题】学生表S、课程表C和学生选课表SC,它们的结构如下: S(S#,SN,SEX,AGE,DEPT) C(C#,CN) SC(S#,C#,GRADE)
A.
所有比“王华”年龄大的学生姓名、年龄和性别。正确的SELECT语句是( )
B.
SELECT SN,AGE,SEX FROM S
C.
ERE AGE>(SELECT AGE FROM S
D.
ERE SN=“王华”)
E.
SELECT SN,AGE,SEX
F.
OM S
G.
ERE SN=“王华”
H.
SELECT SN,AGE,SEX  FROM S
I.
ERE AGE>(SELECT AGE
J.
ERE SN=“王华”) K. SELECT SN,AGE,SEX  FROM S L. ERE AGE>王华.AGE
【单选题】胶带输送机的驱动有单滚筒驱动和()滚筒驱动。
A.
B.
C.
D.
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