18.
b
(figure 5-4)
19.
c
(figure 5-4)
20.
a
(figure 5-4)
21.
d
(para 5-2e)
22.
e
(para 5-3b; figure 5-2)
23.
b
(para 5-2g)
24.
c
(figure 5-1)
25.
a
(figure 5-2)
26.
d
(figures 5-1 and 5-2)
27.
b
(para 5-2f)
28.
e
(figure 5-3)
29.
c
(figure 5-4)
30.
a
(para 5-8)
31.
b
(para 5-7c(4))
End of Lesson 5
MD0723
5-19