【简答题】七、短文填词。根据短文大意,填入恰当的单词。(20分,每空2分) Many useful machines were __77__ by inventors. These machines have __78__ the world a lot. There are many great inventors in the world, and Watt was one of them. Watt ...
【判断题】受弯构件截面弯曲刚度随着荷载增大而减小。( )
【单选题】走中国工业化道路,必须明确( )和战略步骤。
【单选题】高血压患者每人每日食盐摄入量不超过( )为宜
【单选题】由于心脏或血管壁破裂而引起的出血称为( )