皮皮学，免费搜题
登录
搜题
【简答题】
湿地是人类珍贵的自然遗产，我国近年来在东北开展了20项湿地保护示范工程，对约530万公顷的湿地进行保护。读图，分析回答下列问题。(6分) (1)湿地是一种特殊的( ) A．水资源 B．生物资源 C．土地资源 D．气候资源 (2)图中的我国东北湿地保护区分布在A 平原、B 平原和嫩江源头。 (3)下列野生动物分布在我国东北湿地保护区的是( ) A．羚羊、孔雀 B．丹顶鹤、天鹅 C．、金丝猴 D．东北虎 (4)新中国成立后，东北湿地由“北大荒”变成“北大仓”，而环境问题也日益突现出来。下列环境问题与其不相关的是( ) A．土地盐碱化 B．物种骤减 C．酸雨加重 D．沙尘暴增加 (5)今天人们又开始有计划地将“北大仓”逐步变成“北大荒”，有说法不正确的是 A．湿地、野生动物等构成了陆地生态系统的主体 B．湿地在维护和优化生态系统中发挥着不可替代的作用 C．退耕还湿地是对湿地及其生物多样性的保护 D．沼泽地作为特殊的自然景观是极具开发潜力的旅游资源
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】---I'm terribly sorry. I have to cancel my appointment for tomorrow, because I have something urgent.---____________.
A.
I'm afraid you can't do that.
B.
Sorry. We have to wait for another chance.
C.
That's all right. We can put it , sometime next week.
D.
I'm sorry too, but I'm well prepared for it.
【单选题】— I wonder if you have a single room for tonight. —Sorry, I’m afraid we have _________at the moment.
A.
no
B.
none
C.
nothing
D.
no one
【单选题】—I’m sorry , I shouldn’t have been so rude to you . —You your temper but that’s OK .
A.
have lost
B.
had lost
C.
did lose
D.
were losing
【单选题】— Would you like to have milk tea with me this Sunday? — I'd love to, but I'm sorry I have time. [ ]
A.
never
B.
no
C.
not
【单选题】--Would you like ______ the History Museum with us tomorrow? --I’m afraid I won’t. I have been there twice.
A.
visited
B.
visit
C.
visiting
D.
to visit
【单选题】I’m afraid I won’t be available then. I _____ a friend off at 3:00 this afternoon.
A.
see
B.
am seeing
C.
will see
D.
will be seeing
【单选题】I'm terribly sorry. I have to cancel my appointment for tomorrow, because I have something urgent.
A.
--_____________.
B.
I'm afraid you can't do that.
C.
Sorry. We have to wait for another chance.
D.
That's all right. We can put it off sometime next week.
E.
I'm sorry too, but I'm well prepared for it.
【简答题】—I’m sorry , I shouldn’t have been so rude to you . —You your temper but that’s OK . A ． have lost B ． had lost C ． did lose D ． were losing
相关题目：