i5T5系列产品标准配置精诚刀架为伺服刀架。
参考答案：对
— What's wrong with you?
— I caught ______ bad cold and had to stay in ______ bed. [ ]
A. a; /
B. a; the
C. a; a
D. the; the
钻井液絮凝剂部分水解聚丙烯酰胺的水解度以（）为最佳。
A、10%~20%
B、30%~40%
C、40%~50%
D、50%~70%
