题干
—You're very ____________, aren't you?
—Yes. Our team has won the game.
A：happy
B：worried
C：sad
D：afraid
答案(点此获取答案解析）
A
—You're very ____________, aren't you?
—Yes. Our team has won the game.
A：happy
B：worried
C：sad
D：afraid
Y+Z,其化学反应速率随时间变化的图像如图所示，其中t1时刻达到平衡，t2时刻缩小容器体积，t3时刻重新达到平衡，下列有关说法不正确的是( )