()不是炒黄的操作方法。
A、药材置热锅内
B、药材置锅内后加热
C、用文火
D、炒至飘逸出香气
参考答案:B
一辆汽车从甲地开往乙地的过程中,前一半时间内的平均速度是30 km/h,后一半时间的平均速度是60 km/h,.则在全程内这辆汽车的平均速度是 ( )
A.35 km/h
B.40 km/h
C.45 km/h
D.50 km/h
The little boy was so careless with his spelling that she often_____ letters from words.
A.left out
B.left behind
C.left off
D.let alone