你能帮帮他们吗
精彩回答
Steve isn't as ___ as Kelly. He often makes mistakes in his writing.
2个月前
_______ seems to be some disagreement between his words and actions.
7个月前
三个人跳绳,一共跳了360下,小红跳了130下,小莉跳了146下,小文跳了多少下?
1年前
__________,焉知来者之不如今也。(《论语•子罕》)
1年前
有两个电路原件A和B,流过元件的电流与其两端电压的关系如图甲,把它们串联在电路中,如图乙。闭合开关S,这时电路中的电流为0.2A,则电源电压和元件B的电功率分别是( )
1年前