在锅炉的主要性能指标中,反映锅炉工作强度的指标是( )。
A.蒸发量
B.出口蒸汽压力和热水出口温度
C.受热面蒸发率
D.热效率
参考答案:C
在翻译过程中催化肽键形成的是
A.转肽酶B.转位酶C.释放因子D.核蛋白体
Directions:This section consists of three groups of pairs listed in two columns, A and B. You are to match the one marked 1), 2), 3),4) or 5) in Column A with the one marked a, b, c, d or e in Column B. One point is given to each pair you match. 1) ______the Grammar-Translation Method 2) ______ the Direct Method 3) ______ the Oral Approach 4) ______ the Audiolingual Method 5) ______ the Cognitive Approach a) The neogrammarians, represented by Hermann Paul formed its main linguistic base. b) The structural linguists believed that the primary medium of language is oral, that is language is speech. c) It lays emphasis on the conscious acquisition of language as a meaningful system. d) It can be characterized as a type of British "structuralism". e) It believes in the natural process of language learning and in the inductive teaching of grammar.