—Yes, I am.
A:Will; play
B:Are; going to play
C:Do; play
如图是某化学反应前后的微观过程示意图,其中“”、“”表示两种不同的原子.请根据图示回答:(1)该反应的基本类型是____.(2)反应前的物质____(填“可能”或“不可能”)是氧化物.(3)反应前后、、三种粒子的个数比是____.(4)从图中还可获得的一条消息是____.
The discovery of the new drug is of great significance to people _______ from heart problems.
Sportsmen wanted to arrive earlier so that they could have time to before the race.