若已知a=10，b=20，则表达式l a ＜ b的值为【 】。
题型：填空题
问题：
若已知a=10，b=20，则表达式l a ＜ b的值为【 】。
题型：填空题
Australia is sometimes called “the lucky country”. One reason is the wonderful riches under the earth: gold, silver, iron, coal and many other precious metals. Oil and natural gas have helped to build big industries. Victoria, the southeastern state, has a large number of industries. Oil is no problem for them. The Bass Strait, off the coast of Victoria, has been one of the country's biggest oil fields for many years.
South Australia is the driest of all the states, but it does have the Murray River. The river brings greenness and life to the state's southeast corner. In the early days of Australian history, the Murray River was South Australia's main road. Before real roads and railways came, the river carried people and goods from the coast up into the country. Some towns on the Murray still keep the old riverboats, and visitors can ride on them.
小题1:People sometimes call Australia “the lucky country”, because ____ .
A．the people in Australia are very lucky
B．Australia has a large number of industries
C．there is the biggest oil fields of the world
D．the country has very rich natural resources小题2:What do you think of South Australia?
A．It's a scene of desolation（荒凉）.
B．It's a scene of desert.
C．The land is full of life.
D．The land lies waste.小题3:Which of the following gives you a correct idea of the Murray River?
a．It lies in the south of the country.
b．It is the largest river of the country.
c．It irrigates the driest of the country.
d．It brings greenness and life to the southeast corner.
e．It is still an important passageway to carry people and goods.
A．a, b, c and d
B．b, c, d and e
C．c, d, e and a
D．d, e, a and b小题4:Which of the following pictures shows the right position of Victoria?
D