问题：泽泻科的拉丁文是( )。A．AraceaeB．ArecaceaeC．AlismataceaeD．Asteraceae...

Friday, May 26, 2023

问题：百合科(Liliaceae)与石蒜科(Amaryllidaceae)的主要区别在于后者子房下位。()A.正确B.错误 ...

Friday, September 23, 2022

问题：(Ⅲ)求二面角F－BD－A的大小. ...

Saturday, April 30, 2022

问题：()子房于土中发育成荚果。A.大豆B.花生C.土豆D.豆薯 ...

Friday, September 23, 2022

问题：马铃薯属块茎,甘薯属块根。()A.正确B.错误 ...

Monday, May 2, 2022

问题：姜科植物是单子叶植物虫媒传粉的最高级类型。()A.正确B.错误 ...

Friday, September 23, 2022

问题：We can learn from the passage that __A. communication breakdown results from short pau ...

Saturday, April 30, 2022

问题：荚果是2个心皮合生形成的。()A.正确B.错误 ...

Thursday, September 22, 2022

问题：影响该生态产业核心企业布局的主导因素是 ( )A.能源B.技术 C.原料D.市场 ...

Saturday, April 30, 2022

问题：22______A.national B.embarrassing C.cultural D.amazing ...

Friday, January 29, 2021

问题：慈姑的()供食用或制淀粉,或药用。A.球茎B.块茎C.肉质直根D.块根 ...

Friday, September 23, 2022

问题：塔赫他间等人用()来解释植物界的系统发生。A.真花学说B.假花学说C.幼态成熟学说D.单元说 ...

Friday, September 23, 2022

问题：真花学说认为现代被子植物的原始类群是两性花的多心皮类,尤其是木兰目植物。()A.正确B.错误 ...

Friday, September 23, 2022

问题：蕨类植物的配子体皆呈心脏形。()A.正确B.错误 ...

Monday, May 2, 2022

问题：()叶柄翅大,果直径大于10 cm。A.柚B.酸橙C.柠檬D.金橘 ...

Friday, September 23, 2022

问题：The girl arranged to have piano lessons at the training centre with her sister ________ ...

Saturday, April 30, 2022

问题：薯蓣科植物具经济价值的器官通常是()。A.叶B.花C.果或种子D.根状茎或块茎 ...

Friday, September 23, 2022

问题：—How about camping this weekend, just for a change? —OK, you want. A.whichever B.how ...

Thursday, September 22, 2022

问题：人参为著名的补气强壮药,其最主要的药用成分是多种()。A.维生素B.氨基酸C.人参皂苷D.矿物质 ...

Friday, September 23, 2022

问题：下列科中()为水生植物。①泽泻科②槟榔科(棕榈科)③天南星科④水鳖科A.①③B.①②C.③④D.①④ ...

Monday, May 2, 2022