真實(shí)驗(yàn)和準(zhǔn)實(shí)驗(yàn)最大的區(qū)別在于
A、自變量個(gè)數(shù)不同
B、因變量測(cè)評(píng)方式不同
C、無關(guān)變量個(gè)數(shù)不同
D、無關(guān)變量的控制程度不同
D
暫無解析
Copernicusmaintainedthattheearth_____roundthesun.
Havingdecidedtorentaflat,we________contactinghousingagenciesinthecity.
句子寫作：Thepianoplayerbegantosingloudly.
句子寫作：HeisverybusypreparingIELTS.Hehasnotimetoplay.
Thosewhochangemobilephonestoofrequentlywillhavetopayforbeing______.
