从家到学校小红要7分钟,小明要6分钟,小红和小明所行速度比是( ) A.7:6 B.

题型:选择题

问题:

从家到学校小红要7分钟,小明要6分钟,小红和小明所行速度比是(  )
A.7:6B.6:7C.
1
6
1
7
考点:比的认识
题型:选择题

在平面直角坐标系中(如图每格一个单位)

(1)作出下列各点(-2,-1),(2,-1),(2,2),(3,2)(0,3),(-3,2),(-2,2),(-2,-1)并依次将各点连接起来(说说所连图形象什么);

(2)所得图形整体向右平移2个单位,说出对应点的坐标发生了怎样的变化?

题型:选择题

如果一个人的右臂动脉破裂出血,这时你正在身边,你怎样紧急抢救(  )

A.包扎近心端的动脉

B.包扎远心端的动脉

C.包扎近心端的静脉

D.包扎远心端的静脉

题型:选择题

语法填空

     We arrived at Chiang Mai at 9 p. m.It wasn't 1.________two days later that we were able to take a

closer look at Thai elephants.2.________our stay there,we visited the Measa Elephant Camp,some 20

minutes' drive from the city center.The camp,3.________ stands aside a rushing river in a lush tropical

valley,is the home of 78 elephants.When we arrived there in the early morning,many black elephants,some with creamy white tusks,4.________(enjoy) their daily bath in the river.

     At Measa,we were amazed by the elephants' 5.________(astonish) skills.They could not only play

football and 6.________harmonica (口琴),but also paint incredibly wonderful pictures with 7.________

trunks.Little wonder then that Bangkok's little elephant accomplished the feat (技艺) vividly

8.________(describe) in the primary school textbook.

     At the end of the Thailand tour,everybody in the group seemed to be attracted by these elephants as all of 9.________rushed to purchase elephant sculptures,toys,ornaments and Tshirts.I was no

10.________(except). The elephantpendant (坠饰) key chains I bought turned out to be popular gifts for my colleagues.

题型:选择题

已知学生选课信息表:sc(sno,cno,grade)。查询“至少选修了一门课程,但没有学习成绩的学生学号和课程号”的SQL语句是( )。

A.SELECT sno,cno FROM sc WHERE grade=NULL

B.SELECT sno,cno FROM sc WHERE grade IS"

C.SELECT sno,cno FROM sc WHERE grade IS NULL

D.SELECT sno,cno FROM sc WHERE grade=''

题型:选择题

浓缩饲料

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