生命体征是评价_________的重要征象,包括________、_________、_________、__________。
参考答案:生命活动质量;体温;脉搏;呼吸;血压
影响Rf值的因素有:()
A.吸附剂的性质
B.展开剂的极性
C.展开时的温度
D.样品的量
E.展开的方式
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) ______ Verbal Behavior 2) ______ Communicative English for Chinese learners 3) ______ The Scientific Study and Teaching of English (1917) 4) ______ Communicate (1979) 5) ______ Notional Syllabuses (1976) a) Palmer b) Skinner e) Li Xiaoju d) Morrow and Johnson e) Wilkins