【单选题】“Love of life”,______ is one of Jack London’s masterpieces, has been translated into many languages.
【单选题】下列加工方法中属于力学加工类型的是( )
【单选题】He stopped playing baseball in 1998 his illness.
【单选题】He stopped playing soccer _____ his sore back. [ ]
【单选题】Writing this book has been a great pleasure, a true______of love.
【单选题】种子装在一定容量的容器中,气体所占的部分如用百分率表示叫