— What a beautiful car! When ________ you ________ it?
— I ________ it for two years.
A：did; buy; have bought
B：did; buy; have had
C：have; bought; have bought
D：have; bought; have had
下列关于植物激素的叙述，正确的是（ ）
“要勇敢地抬头”、“阳光总在风雨后”、“乌云上有晴空”、“每一份希望在你手中”。这说明（ ）
接触过水痘疫苗或出过水痘的人能抵抗水痘病毒的侵袭的原因是（ ）
