发动机（）s后未能启动，扳动燃油熄火拉杆断油。
A、5
B、10
C、15
D、20
参考答案：C
在制作馒头和酿酒过程中都需要的微生物是（ ）
A．曲霉菌
B．酵母菌
C．青霉菌
D．乳酸菌
She as well as her classmates ________ English very much.[ ]
A. like
B. Likes
C. have liked
D. liked
