题干
They usually watch cartoons at home doing outdoor activities.
A：instead of
B：instead
C：instead to
D：instead with
答案(点此获取答案解析）
A
They usually watch cartoons at home doing outdoor activities.
A：instead of
B：instead
C：instead to
D：instead with
前n项的和为 （ ）
cZ(g)在一定温度下的一密闭容器内达到平衡后，t0时改变某一外界条件化学反应速率(v)一时间(t)图象如图。则下列说法中正确的是：