在数轴上，表示－7的点在原点的 ____侧.
北京城是我国也是世界建筑之林的瑰宝。
下列有关实验变量的叙述，正确的是（ ）
3x-4有意义的x的取值范围是____ ．
— What can we learn from the story?
— No pains, no gains.
I've got the message from Mr. Wang that what he has settled down in Canada.
