皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【简答题】
The world is divided into two parts. One half of the world is rich and 26 is poor. In the poor part, a lot of people have 27 got enough to eat. When they are ill, none of the 28 can receive them because they have no money. In the rich 29 , people eat very well, 30 a dog or a cat in North America eats   31 than a child in poorer countries. The poor countries have some difficult problems. Sometimes the land is too poor to grow 32 on. People there have 33 rich land nor enough water. The land 34 be made better, but a lot of things must be done. The people must be taught and water must 35 . But rich countries have problems, too. There are not always good places to 36 . Sometimes the air is not clean and the rivers are too 37 to swim in or to drink. The roads and streets are full of people and cars. Cars and buses have to move 38 . Noise is too much. Some people have no houses to live in. Something must be done about these problems. The air and the rivers must be cleaned and be 39 clean. More houses have to be built. 40 these things cannot be done easily. 小题1: A.others B.the other C.another D.the others 小题2: A.never B.neither C.nor D.no 小题3: A.schools B.factories C.malls D.hospitals 小题4: A.family B.people C.country D.part 小题5: A.still B.ever C.yet D.even 小题6: A.better B.more C.less D.well 小题7: A.anything B.everything C.something D.nothing 小题8: A.both B.no C.not D.neither 小题9: A.must B.will C.can D.need 小题10: A.find B.be finding C.be found D.found 小题11: A.stay B.live C.live in D.sleep 小题12: A.dirty B.small C.wide D.deep 小题13: A.straight B.slowly C.quickly D.carefully 小题14: A.kept B.worked C.done D.become 小题15: A.And B.But C.Because D.So
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】下列求导正确的是
A.
(x+ )’=1+
B.
C.
【单选题】焊条管理的好坏对( )有直接的影响,因此,焊条的储存、保管很重要。
A.
工程质量
B.
工艺性
C.
焊接成型
D.
焊接质量
【单选题】往复泵的活塞杆密封一般选用()。
A.
唇形密封圈
B.
O形密封圈
C.
软填料轴封
D.
机械轴封
【单选题】往复泵的活塞杆密封一般选用( )。
A.
唇形密封圈
B.
0形密封圈
C.
软填料轴封
D.
机械轴封
【单选题】( )年,奈瑟尔于出版了第一部以《认知心理学》命名的专著。
A.
1956
B.
1967
C.
1970
D.
1943
【单选题】下列求导运算正确的是 [     ]
A.
B.
C.
【单选题】往复泵的活塞杆密封一般选用_____。
A.
软填料轴封
B.
机械轴封
C.
唇形密封圈
D.
O型密封圈
【单选题】下列求导正确的是 D
A.
B.
C.
D.
【单选题】下列求导的口诀,你认为正确的是
A.
和的导数等于导数之和
B.
积的导数就是导数之积
C.
复合函数的导数是内导乘以外导
D.
四则运算求导就是把导数进行四则运算
【单选题】机床回零时,到达机床原点行程开关被压下,所产生的机床原点信号送入( )。
A.
PLC
B.
伺服系统
C.
显示器
D.
数控系统
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题