听力部分(共40分) Ⅰ.听句子,选出句中所包含的信息,每小题读两遍(每小题1分,共10分) ()1. A. slide B. sky C. ski ()2. A. sings B. sons C. songs ()3. A. always B. never C. usually ()4. A. eat B. ate C. eats ()5. A. take out B. take o
A novel control strategy for a continuous stirred tank reactor(CSTR)system,which has the typical characteristic of strongly pronounced nonlinearity,multiple ope