Which of the following statements does not refer to “scaffolding”? （ ） A The students brainstorm together to collect more ideas about the topic. B The deskmate shows the answer to the student who could not do the exercises. C The group members give their comments on the revision of their collective writing to make some improvement. D The teacher underlines the linking words and transitional words and guide the students to discuss about the relation between the paragraphs before asking them to sum up the text organization.

问答题关于受相同载荷的圆形平盖与等径的凸形封头应力状况： 下列说法正确的是：( A.受相同载荷的圆形平盖与等径的凸形封头应力状况是不 同的，圆形平盖中以薄膜应力为主，凸形封头以弯曲应力 为主； B. 受相同载荷的圆形平盖与等径的凸形封头应力状況是不 同的，圆形平盖中以弯曲应力为主，凸形封头以薄膜应力 为主： C. 受相同载荷的圆形平盖与等径的凸形封头应力状况是相 同的，圆形平盖和凸形封头都以薄膜应力为主； D.受相同载荷的圆形平盖与等径的凸形封头应力状況是相 同的，圆形平盖和凸形封头都以弯曲应力为主；

问答题Which of the following teaching objectives does not refer to “language understanding”? （ ） A Understand that the 'ea' pattern has several sounds in English. B Tell the meaning of the following words: big, small, long, short, strong. C Understand people from different countries have different ways of greeting and show respect for each other’s custom. D Know “be going to” could be used to describe actions, behaviors and events which are to happen in the future.