大花蕙兰成年植株在6月夜间温度控制在15°C以下花芽分化
A.
it is impossible to have traffic-free streets
B.
people should keep away from their cars
C.
it’s funny to get around the city without cars
D.
each day should be like World Car Free Day
September 22 is a day ______.A.
when cars cause no damage to the earth
B.
when we can go on separate holidays
C.
that reminds us to drive our cars less
D.
that tells us to refuse to drive any cars
According to Carlos Pardo, _______.
A.
it is impossible to have traffic-free streets
B.
people should keep away from their cars
C.
it’s funny to get around the city without cars
D.
each day should be like World Car Free Day
September 22 is a day ______.
A.
when cars cause no damage to the earth
B.
when we can go on separate holidays
C.
that reminds us to drive our cars less
D.
that tells us to refuse to drive any cars
参考解析：
相关知识
大花蕙兰的养殖方法和注意事项
大花蕙兰家庭养殖总结
大花蕙兰栽培
在北方地区节能型日光温室养殖大花蕙兰的几点经验（二）
大花蕙兰生产“温控”核心技术
大花蕙兰组培苗如何繁殖?
“博卉要术”促大花蕙兰提质增效
大花蕙兰的温室栽培及观赏
蝴蝶兰的花期调控
大花惠兰的栽培技术以及注意事项
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