圆柱体的侧面积等于底面积乘以高．______．
因为圆柱的侧面积公式是底面周长×高．
所以圆柱体的侧面积等于底面积乘以高这种说法是错误的．
故答案为：错误．
某女，停经90天，近日 * * 有少量出血，小腹隐痛，妇科检查见子宫高达脐部，未能触及胎体，B超示子宫腔内为落雪状图像，则应考虑为（）。
A.葡萄胎
B.羊水过多
C.子宫肌瘤
D.子宫肉瘤
E.先兆流产
25. These two countries are similar ______ they both have a high snowfall during winter.
A．to which
B．in which
C．in that
D．except that
