—No, English isn't so ________ as Chinese.
A：more difficult; difficult
B：more difficult ; easier
C：difficult; more difficult
D：easier; more difficult
穿着旱冰鞋的小孩用力推墙，会感到墙也在推他，使他后退。这表明物体间力的作用是____ ；用力弯锯条，锯条变弯了，这说明力可以改变物体的____ 。
AgCl
Ag2CrO4
AgI
颜色
白
砖红
黄
Ksp
1.8×10﹣10
1.0×10﹣12
8.5×10﹣17
Mary: Hello!
John: Hi!
Mary: ____
John: Okay! ____
Mary: I want to buy a new dress. ____
John: ____ I don't want to buy a new dress.
Mary: Well, what do you want to buy?
John: ____
A. Some books.
B. No, please!
C. What do you want to buy?
D. Let's go shopping together!
E. Let's go to the clothes shop.
