下列属于细胞共性的选项是
①具有细胞壁 ②具有细胞膜 ③以DNA或RNA为遗传物质 ④具有核膜　⑤具有核糖体

Sunshine Zoo is a nice place to visit. Walk from the South Gate, go  1 , and you will find the Panda House. Pandas are  2  . They like eating   3  . To the north of the Panda House, you'll find the   4. They are the kings of the animal world. Remember not to go near them because they are  5. To the west of  6 Area, you will see lots of birds. They can make beautiful sounds. Go on and you will see the clever and  7 monkeys. To the east of the Monkeys' Forest, you will see the giraffes. The giraffe has a long   8 . It is the tallest animal on the earth(地球). To the north-east of the giraffes, there is a  9  . Cross it, and you will see the elephants. Their ears are 10 open fans.

2011年11月14日，我国天宫一号飞行器与神舟八号飞船第二次交会对接试验获得成功。在此过程中有：倒飞、分离、对接三个关节点，其中分离的时候很容易产生两个目标的偏航、倾斜。因而，在分离前，要控制好两个目标器保持相对____。