“棱柱的一个侧面是矩形”是“棱柱为直棱柱”的
A、充要条件C
暂无解析
Thebookfairhasreceivedapositive________fromreaders.
Decisiononwhetherthemessageisrightorwrongshouldatleastcomeafter_____whatthemessageis.
重写句子：Alanpassedthetest.Alanhadstudiedhard.Alanhadunderstoodthematerial.(complexsentence)
英语翻译：他是公司的首席执行官,但总是平易近人。
Notallbirdscanfly,______doallbirdsbuildnests.
