A：150ml 1mol·L-1 NaCl溶液
B：75ml 2mol·L-1 CaCl2溶液
C：150ml 2mol·L-1 KCl溶液
D：75ml 1mol·L-1 FeCl3溶液
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.
下列地区通行阿拉伯语的是( )
