【简答题】 Read the following background information and then answer the questions. The Nobel Prize in Physiology or Medicine 2015—Tu Youyou (China). Youyou
Tu was born and raised in Ningbo, Zhejiang, China. ...
【单选题】The examination of gender and pay at the late '90s by Ms. Blau and Mr. Kahn indicates that woman would reach parity.
【简答题】下列物质1KCl 2Na2O 3H2CO3 4葡萄糖 5SiO2 6NaHCO3 7NH3 8Fe 9澄清石灰水 10金刚石 属于化合物的是( );属于单质的是( );属于混合物的是( )。
【单选题】生物体内合成谷氨酸的前体物质是 ( ) 。