皮皮学,免费搜题
登录
搜题
【简答题】
Do you like watching stars? Do you 1 time watching the sky on the Mid-autumn Day every year? On this 2 day in 2003, Mars attracted more attention than the moon. The earth and Mars are two planets, far from each other. They run in different orbits(轨道) 3 the sun. The earth was 4 with Mars in August and September. And on August 27, Mars was the closest to the earth in 60,000years. It was only 55.76 million kilometers 5 from the earth on that day. The next time Mars 6 come so elose to the earth is in 2287. Mars became brighter around that day. By looking 7 telescopes(望远镜), sky wаtсhеrѕ 8 thаt thеу ѕаw Маrѕ ѕоuth роlаr сар(冰帽). Іt іѕ mаdе оf 9 water and dry ice. It reflects(反射) sunlight well. I can see the polarcap 10 using my 8-inch telescope," says Ron Wayman from the USA. Soon after the sunset, Mars rose from the east. The fans of Mars didn't stop watching Mars until the next morning when the sun rose and Mars set.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】下列植物中属于极耐荫种类的是( )
A.
一叶兰
B.
文竹
C.
吊兰
D.
常春藤
【单选题】PAGE 54 NEWS 3 Q3
A.
B.
C.
D.
D
【单选题】在制图规范里,线型“---”的用途为( )。
A.
不需要画全的断开畀线
B.
中心线、对称线、定位轴线
C.
表示被索引图样的范围
D.
制图需要的引出线
【判断题】一个数的倍数的个数是无限的,其中最小的倍数是它本身。 [     ]
A.
正确
B.
错误
【单选题】来源于十字花科植物菘蓝的天然药物是
A.
大青叶
B.
艾叶
C.
侧柏叶
D.
紫苏叶
【简答题】一般可见轮廓线用 ( )线型来画,不可见轮廓线用 ( )来画,中心线、对称线、定位轴线用( )来画
【单选题】PAGE 54 NEWS 3 Q2
A.
B.
C.
D.
D
【单选题】设置 student表中no字段为主键的 命令是
A.
show databases
B.
create table
C.
alter  table  student add  primary key(no);
D.
alter  table  student drop  primary key(no);
【判断题】气动压力控制阀都是利用作用于阀芯上的流体(空气)压力和弹簧力相平衡的原理来进行工作的。
A.
正确
B.
错误
【单选题】下列植物中属于极耐荫种类的是( )
A.
凤梨类
B.
蕨类
C.
喜林芋类
D.
竹芋类
相关题目: