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【多选题】
关于生态系统物质循环表述正确的是A.
物质循环根据其范围、途径和周期不同，分为生态系统内小循环和生物地球化学大循环
B.
物质循环过程中，元素储存量大大超过结合在生命系统中的数量，并缓慢释放的，通常被称为储存库
C.
物质循环中元素储量较少、移动较快的称为交换库
D.
根据储存库和物质形态不同，生物地球化学循环可分为水循环、气体型循环和沉积型循环。
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反馈参考答案：
举一反三
【单选题】The one who buy insurance is called ( )
A.
an insurance company
B.
a broker
C.
the insured
D.
an insurer
【简答题】( )是企业品牌战略的重要组成部分，是重要的战略资源，是企业的无形财富和有价资产。 A企业管理创新 B企业形象创新 C企业组织创新 D企业制度创新
【简答题】What is one obvious presupposition of a speaker who says; Where did he buy the beer? Your watch is broken. We regret buying that car.
【单选题】The one who buy insurance is called ( ).
A.
the insurance company
B.
the broker
C.
the insurer
D.
the insured
【单选题】What is an ideal customer (Para. 1) according to the passage?
A.
One who will buy your products or service.
B.
One who will buy a luxury car.
C.
One who is richer than others.
D.
One who is not very poor.
【单选题】30A. It had been taken by the police. B. It had been moved to the next block. ###
A.
30 A. It had been taken by the police.
B.
It had been moved to the next block.
C.
It had been stolen by someone.
D.
It had been parked at a wrong place.
【简答题】Parents who buy the watch may discover that it is one thing for kids to tell time;___________(让孩子们准时又是另一回事)
【单选题】根据以下信息,采用 中点法 计算酒店房间的需求价格弹性。 若P = $70,则Q d = 5000 若P = $90,则Q d = 3000
A.
0.5
B.
1.4
C.
2.0
D.
3.0
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