化学方程式不能提供的信息是[ ]
A．在什么条件下发生反应
B．生成了哪些物质
C．反应物的质量关系
D．化学反应速率的快慢
答案：D
The moment he came into his room, he ______ something wrong, though he couldn’t tell.
A．noticed
B．sensed
C．felt
D．smelt
If I had tried my best last term, I ________more progress then.
A．could make
B．would make
C．must have made
D．could have made
