【单选题】下列哪一个不是三大供能营养素的供能系数?
【判断题】在拉曼光谱中,分子振动要产生位移也要服从一定的选择定则,也就是说只有伴随分子极化度发生变化的分子振动模式才能具有拉曼活性,产生拉曼散射。( )
【单选题】Do you know the girl over there?()
B.
Yes, I remember it now.
C.
It's Sam, my teacher's daughter
【单选题】Who ___ the girl over there?
【单选题】通常情况下,婴儿添加辅助食品的时间是()个月。
【单选题】What does Peter think about the girl over there?
A.
She will not enjoy dancing with him.
B.
She cannot find her way out to the dance floor.
C.
She will be only too glad to accept his invitation.
【单选题】- is the girl over there? - is my friend.