一块平行四边形菜地的底是18m,高是11m,它的面积是______m2.
18×11=198(平方米),
答:这块菜地的面积是198平方米.
故答案为:198.
The first paragraph of this passage tells us about ______.
A.the rhythms of brain waves
B.the daily activities of sleep
C.the stages of sleep in cycles
D.the daily activities in cycles
既疏散风热,又疏肝的药是()
A.柴胡
B.淡豆豉
C.浮萍
D.葛根
E.升麻