①为民族间商旅贸易提供方便 ②促进了民族间的融合 ③加强了与欧洲、非洲的往来 ④有利于边疆开发
A：①②③
B：②③④
C：①②④
D：①③④
下列说法正确的是（ ）
Our Trip to Yibin City
When
On Friday.
How
We will go there 1.
What
But you will need to bring 2 .
Where
Then in the afternoon we will go to 3.
What time
⑴Now please remember that the bus will leave right at 4 .
⑵Tell your parents we'll be back at school 5.
“文章合为时而著，歌诗合为事而作。”我国诗歌创作的黄金时代是（ ）
