黑方将红方打出场外，自己倒在场内，但双方仍手碰着手，应判（）
A.红方出场
B.黑方出场
C.双方无效
参考答案：C
—Mary had great fun ______ her day off.
—Really? What did she ______?
—She went to watch a wonderful dolphin show. [ ]
A. in; do
B. on; do
C. in; did
D. on; did
刚性路面纵、横缝之间以相互（）为宜，当一次摊铺宽度大于4.5m时，增设纵向（）缝。
