皮皮学，免费搜题
登录
搜题
【多选题】
以下关于群体的描述正确的是A.
群体可以是指一个物种所有个体的总和
B.
群体可以是指一定区域内所有人的集合
C.
群体是指一个区域内所有物种的集合
D.
群体是一个无限大的概念
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】下列关于证券公司债券的条款设计的说法,错误的是( )
A.
证券公司发行债券应该进行债券信用评级
B.
证券公司发行债券因其高风险必须进行强制性担保
C.
证券公司债券公开发行的价格或利率以询价或公开招标等市场化方式确定
D.
证券公司债券可公开发行,也可以非公开发行
【单选题】In order to find the missing child, villagers all they can over the past five hours.
A.
did
B.
do
C.
had done
D.
have been doing
【单选题】The police______the whole city in order to find the suspect of the murder.
A.
undid
B.
captured
C.
combed
D.
pursued
【单选题】In order to find the missing child，villagers ________ all they can over the past five hours.(2012·安徽)
A.
did
B.
do
C.
had done
D.
have been doing
【多选题】Which of the following aspects need to be given in order to find the lost luggage?
A.
your age
B.
your flight number
C.
description about your luggage
D.
your contact number or address
【单选题】In order to find the missing boy, the young couple all they can over the past twenty-four hours.
A.
do
B.
did
C.
have been doing
D.
had done
相关题目：