小麦和水稻的花属于（），玉米、黄瓜、蓖麻的花属于（），大麻和菠菜的花属于（）。
参考答案：雌雄同花；雌雄同株异花；雌雄异株
---- If he_____ , he ______ that food.
---- Luckily he was sent to the hospital immediately.
A．was warned; would not take
B．had been warned; would not have taken
C．would be warned; had not taken
D．would have been warned; had not taken
直接检测
