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【多选题】利用大型水生植物防治水体富营养化的基本原理有哪些?( )
A.
植物的光合作用
B.
植物的吸收作用
C.
植物根际微生物的作用
D.
超富集植物的富集作用
【判断题】mov [2000h], 3478h, 该指令错误
A.
正确
B.
错误
【单选题】There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to give children something to do. In the ancient world, as in toda...
A.
their social roles are rigidly determined
B.
most boys would like to follow their fathers' professions
C.
boys like to play with their fathers while girls with their mothers
D.
they like challenging activities
【单选题】某企业2015年2月14日为甲公司提供运输劳务开具了运输业增值税专用发票,应收取的运费为100万元,增值税11万元。为了提早收取劳务款而在合同中规定了现金折扣条件为:2/10,1/20,N/30(计算现金折扣时不考虑增值税)。甲公司在2015年2月28日支付上述款项,则该企业实际收到的金额为( )万元。
A.
111
B.
110
C.
109
D.
109.89
【单选题】There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to five children something to do. In the ancient world, as is toda...
A.
their social roles are rigidly determined
B.
most boys would like to follow their fathers' professions
C.
boys like to play with their fathers while girls with their mothers
D.
they like challenging activities
【单选题】听力原文: There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to give children something to do. In the ancient world, as t...
A.
Because boys and girls are being prepared for different social roles.
B.
Because boys are more courageous.
C.
Because toy makers want to diversify their products.
D.
Because parents have different expectations for boys and girls.
【多选题】本实验进行水体富营养化评价时测定的指标为()
A.
总 P
B.
叶绿素
C.
正磷酸盐
D.
叶绿素 a
E.
总 N
【判断题】电子商务中的每一笔交易,都包含着“四流”,即商流、信息流、资金流和物流。( )
A.
正确
B.
错误
【多选题】利用大型水生植物对防治水体富营养化的基本原理主要有哪些?( )
A.
植物光合作用
B.
植物的吸收作用
C.
植物根际微生物的作用
D.
超富集植物的富集作用
【单选题】There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to give children something to do. In the ancient world, as is toda...
A.
their social roles are rigidly determined
B.
most boys would like to follow their fathers' professions
C.
boys like to play with their fathers while girls with their mothers
D.
they like challenging activities
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