题干
. --T
he weather has been very hot and dry.--Yes. If it had rained even a drop, things would be much better now! And my vegetables__________
A：wouldn't die
B：didn't die
C：hadn't died
D：wouldn't have died
答案(点此获取答案解析）
D
s，那么它从斜面中点到顶端所用时间为（ ）
