填空题
Listen to the statement and complete the following sentences with NO MORE THAN TWO WORDS. The native people of Alaska have access to the sea otters killing only if the harvest is __________ .
【参考答案】
not wasteful
点击查看答案&解析
<上一题
目录
下一题>
热门
试题
单项选择题
What is the trend of the kelp forest in the future
A.increasing
B.declining
C.keeping balance
点击查看答案&解析
单项选择题
This ecological balance among sea urchins, sea otters, and kelps became __________ during the nineteenth century.
A.upset
B.satisfactory
C.neutral
点击查看答案&解析
相关试题
In parts of the Aleutian Islands,...
When the number of the sea urchins...
Which of the following presents the...
The natives can harvest sea otters...
The number of seal or sea lion de...