已知3z1+(z2+1)i=2z2-(z1-2)i,且z1、z2在复平面内的对应点关于原点对称,求z1和z2.
常年受西风带控制下的自然带的名称是（ ） A.亚热带常绿硬叶林带 B.亚热带常绿阔叶林带 C.温带落叶阔叶林带
Mozart started writing music ______________ he was four years old.A until B after C before D when
In today’s world, being able to speak more than one language, including English, is ______ you stand out and get ahead. A. what B. which
读下面地球公转示意图，完成下列问题： （1）在图中适当位置画出地球公转的方向。 （2）当地球公转至B、D时，太阳直射__________； （3）当地球公转
从方框中选择恰当的词或短语并用其正确的形式填空。 divide oneself into；patient；be good at；live；used to；be different from；value； in a mess；build；prepare for
When talking about humor, people often refer to famous humorists such as Samuel Langhorne Clemens, better known by the pen-name Mark Twain. Samuel Langhorne Clemens, America’s famous writer,
1个葡萄糖分子有氧呼吸释放能量为m，其中40%用于ADP转化为ATP，若1个高能磷酸键所含能量为n，则1个葡萄糖分子在有氧呼吸中产生ATP分子数为（ ）
