工程上如何改善切换成功率？
参考答案：
A.调整覆盖，构造主导小区。B.在可能出现越区孤岛切换的区域加强覆盖。
股份有限公司是市场经济中的核心企业组织制度和管理制度。( )
Damage to ship’s fittings caused by stevedore’s negligence often happens．Therefore，the stevedores（）the cost of repairs effected.
A.should hold responsible for
B.should hear in mind
C.should be held responsible for
D.should bear no compensation for
