听力音频：
Question 21–25
Choose the correct letter, A, B or C
Product development presentation: mosquito net
21 Edward heard about a type of mosquito net from A an administrator. B a doctor. C a friend.
22 Edward believes that mosquito nets were first used in A China. B Japan C Egypt.
23 Chemical treatment of mosquito nets in the mid-twentieth century A was first developed by a soldier. B made them potentially dangerous to users. C was made possible by modern textiles.
24 The owners of present-day nets all A are likely to find they have an unpleasant smell. B should avoid using them every night. C may have difficulty obtaining the necessary chemical.
25 According to Edward, Olyset nets are better than other nets because they A remain effective for longer. B use a greater number of chemicals. C give protection against more types of insects.
Questions 26–30
Complete the flow-chart below. Choose FIVE answers from the box and write the correct letter, A–G, next to questions 26–30.
A workforce
B sources of funding
C investment opportunities
D unique features of the product
E future developments
F production figures
G national economies
Seminar presentation
Context: need for anti-malarial products Figures relating to:
-
global incidence of the disease
-
impact on 26 _______
Mosquito nets
-
history
-
27 _______
Production
-
information about 28 _______
-
profile of manufacturer with 29 _______
-
30 _______ (according to website)
答案
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