变速器的档位越低，传动比越小，汽车的行驶速度越低。
参考答案：错
That kind of plant can be made ______ paper and paper can be made ______ wood.
A．of; of
B．from; of
C．from; into
D．into; from
肠外营养操作不当可发生( )
A．导管脓毒症B．吸入性肺炎C．胆囊结石、胆汁淤积D．鳞状脱屑、脱发E．高渗性非酮性昏迷
