乾隆盛世下的中国潜伏着巨大的危机，产生这些危机的内部原因有( )
①强化专制统治 ②坚持重农主义政策，压制打击工商业
③鄙视科学技术 ④实行闭关锁国政策 ⑤西方列强把侵略矛头指向中国
A：①②③④⑤
B：②③④⑤
C：①②③④
D：④⑤
如图所示，滑动变阻器有ABCD四个接线柱，将其中的两个接线柱接入电路，改变电路中电流的大小，正确的连接方式最多有（ ）
①深蓝的天空中挂着一轮金黄的圆月。（缩句）
②这少年便是闰土。（扩句（至少二处））
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 ____.
列举近代史上不平等条约名称及影响中国社会性质的变化程度。
