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【单选题】
作物秸秆与人粪尿等有机物,在沼气池中经过厌气发酵制取沼气后形成的肥料,叫( )A.
堆肥
B.
厩肥
C.
沤肥
D.
沼气肥
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【简答题】阅读下面短文把四个句子A-D 填入文中空缺处(1-4)，使短文内容完整正确，并完成第5小题。 In 1945, China's well-known artist and poem Liao Bingxiong(廖冰兄) held a works(作品)display in Chongqing. And many poems, artists, writers and other famous p...
【简答题】分小亚同学饲养了一对白色家兔（甲为雌性，乙为雄性）。她每天喂养时，①把它们的动作、习性以及各种特点都一一记下来，以便以后进行分析比较。②在她的精心饲喂下，甲、乙两只家兔健康成长，并生下4只可爱的兔宝宝，其中1只黑色，3只白色。据此回答下列问题： (1)据①中描述可知，小亚同学所采用的探究方法是 （调查法或观察法）。 (2)甲、乙两兔的生殖方式是 。 (3)家免的白毛与黑毛在遗传学上叫做一对 性状。...
【简答题】The weather is something no one can control. It affects( 影响 ) everyone--- rich or poor, young or old in every part of the world. Maybe that is 1 there are so many expressions about the weather, especi...
【简答题】一、单词拼写 1．He has been out of ____________ (联系) for 10 years. 2．Tom is a b___________ boy and he can learn something quickly. 3．I hear many famous actors will be p___________ at the party. 4．Children ar...
【简答题】Some children think writers are great and they can tell people a lot. So they also wish to be writers some day. They mean that they want to write stories or books which many persons will read. I would...
【单选题】What is the cause of so many internally displaced persons in Rafiki?
A.
drought
B.
conflict
C.
food shortage
D.
a failed harvest
【简答题】什么叫“贸易术语”?为什么在国际贸易中要使用贸易术语?
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