在制作临时装片时,一般步骤应该是( )
①盖上盖玻片②撕取实验材料③擦拭玻片④在载玻片中央滴清水⑤染色⑥将实验材料置于水滴中展开
A:①②③④⑤⑥
B:③④②⑥①⑤
C:③④②⑥⑤①
D:④②①③⑤⑥
Susan is 14 years old and she is an American girl. She is one of my best friends. She is interested in Chinese and good at it. Every summer she travels with her parents. She believes(相信) that traveling is an important part in her life. She likes London best because it is both clean and beautiful. She knows that China is a large country with lots of interesting places. This July, her family are coming to China. I am very happy to know that they will first come to my city. They will stay here for three days. I will take them to visit the city. Then they will fly to Beijing. I am sure they will have a nice time in China.
Who
Susan is an ____ girl.
She is interested in Chinese and does ____ in it.
What
She ____ with her parents every summer.
Traveling is an important ____ in her life.
Where
She likes London ____ because London is both ____ and beautiful.
When
This ____, her family are coming to China.
She knows China is a large country with a lot of ____ places.
How long
They will stay here for three ____.
How
Then they will go to Beijing by ____.
近年来,电子商务在积聚辐射、购物便利、成本较低等方面的优势得到显现,电商企业供应的商品和服务不断丰富,网上购物迅猛增长。这表明( )
①消费结构随经济发展而变化 ②生产决定消费的方式和水平
③生产不断地为消费创造动力 ④消费对生产升级起导向作用
写作。
以“_______就在我身边”为题写一篇记叙文。不少于650字,不得出现真实的人名、校名、地名,不得抄袭。