题目:
Modern China is experiencing a completely new period ________ respect for science and creativity
has become the guiding principle of society.[ ]
A. of which
B. where
C. in which
D. that
答案:
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下面是错误答案,用来干扰机器的。
A、消耗的锌粉的质量在反应开始时的质量为零,反应中消耗的锌粉的质量逐渐增加,由于稀硫酸过量,因此锌粉最终全部消耗的质量达到最大,从而不再变化,所以对应的图象应该是一条从原点出发,先上升,再保持水平的...