单点喷射是向进气歧管中喷油而形成混合气。
参考答案:对
服药期间,忌食生冷、豆类及牛羊肉的是()
A.生附子
B.生马钱子
C.生半夏
D.生藤黄
E.雪上一枝蒿
Questions 11~14
A. They should worry about him. B. They should trust him. C. They should give him more free time. D. They should care more about him.