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【简答题】
如图甲为某生态系统示意图，图乙表示兔迁入该环境后种群数量随时间的变化曲线。请据图回答问题： (1)图甲中全部生物的总和构成了_________。该生态系统含有食物链________条，狐与鸟之间的关系为__________，这两种动物之间信息传递的特点是__________。 (2)流入该生态系统的总能量是___________，兔子粪便中的能量属于同化的能量。碳元素在生物群落内部传递是沿着__________进行的。 (3)在图乙B点标志重捕法调查该兔的种群密度，第一次捕获50只，全部标记后释放，一个月后进行第二次捕捉，捕获到未标记的40只，标记的20只。估算该兔种群在这一环境中的K值是____________。 (4)试用所学知识，写出既可防治农业害虫又不会造成环境污染的措施：_______________。
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参考答案：
举一反三
【单选题】While our manager is away on business, Our company will be ______ Mr. Zhang.
A.
in the charge of
B.
in charge of
C.
taken charge of
D.
taking the charge of
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【判断题】中国夏代还没有确实的考古记录。()
A.
正确
B.
错误
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【单选题】You ______ our manager in the office this morning, because he has gone to Shanghai on business.
A.
shouldn't see
B.
couldn't have seen
C.
can't see
D.
mustn't have seen
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【判断题】Both the American people and Chinese people have the same attitude towards Sun Wukong.
A.
正确
B.
错误
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【单选题】Our manager referred to your work ______ high praise.
A.
in spite of
B.
in ways of
C.
in favor of
D.
in terms of
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【单选题】People have the same opinion about the impact of globalization on the Arabic culture.
A.
True
B.
False
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【单选题】关于乳腺脓肿的治疗原则,下列哪项是错误的
A.
切开引流时取放射状切口
B.
乳晕下脓肿应沿乳晕边缘作弧形切口
C.
切开引流时,应避免切开脓肿隔膜
D.
乳房后脓肿应沿乳房下缘作弧形切口
E.
乳房深部脓肿需先穿刺后切开
查看完整题目与答案
【单选题】Our manager a report in the office now.
A.
write
B.
writes
C.
is writing
查看完整题目与答案
【单选题】While our manager is away on business, our company will be _______Mr Zhang.
A.
in the charge of
B.
in charge of
C.
taken charge of
D.
taking the charge of
查看完整题目与答案
【单选题】利用定积分的几何意义计算由直线 , , 所围成的平面图形的面积
A.
4
B.
C.
2
D.
1
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相关题目：
【单选题】While our manager is away on business, Our company will be ______ Mr. Zhang.
A.
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B.
in charge of
C.
taken charge of
D.
taking the charge of
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【判断题】中国夏代还没有确实的考古记录。()
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【单选题】You ______ our manager in the office this morning, because he has gone to Shanghai on business.
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can't see
D.
mustn't have seen
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【判断题】Both the American people and Chinese people have the same attitude towards Sun Wukong.
A.
正确
B.
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【单选题】Our manager referred to your work ______ high praise.
A.
in spite of
B.
in ways of
C.
in favor of
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in terms of
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【单选题】People have the same opinion about the impact of globalization on the Arabic culture.
A.
True
B.
False
查看完整题目与答案
【单选题】关于乳腺脓肿的治疗原则,下列哪项是错误的
A.
切开引流时取放射状切口
B.
乳晕下脓肿应沿乳晕边缘作弧形切口
C.
切开引流时,应避免切开脓肿隔膜
D.
乳房后脓肿应沿乳房下缘作弧形切口
E.
乳房深部脓肿需先穿刺后切开
查看完整题目与答案
【单选题】Our manager a report in the office now.
A.
write
B.
writes
C.
is writing
查看完整题目与答案
【单选题】While our manager is away on business, our company will be _______Mr Zhang.
A.
in the charge of
B.
in charge of
C.
taken charge of
D.
taking the charge of
查看完整题目与答案
【单选题】利用定积分的几何意义计算由直线 , , 所围成的平面图形的面积
A.
4
B.
C.
2
D.
1
查看完整题目与答案
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