这位和蔼的老人一直有人陪伴着.The kind old man is accompanied all the time.他们说他是个毫无怜悯心 、 一点也不和蔼的冷血动物.They said he is a pitiless , cold - blooded fellow , with no geniality in him.这时上尉把一只和蔼的手放在这位前经理的肩上.Now the latter put a kindly hand o...
The ethnic populations are so intermingled that there's bound to be conflict.各民族人口如此杂居，肯定会发生冲突。Interesting distinctions can be drawn between the two populations.比较两类人可以发现有趣的差异。Figure 1.15 shows which provinces lost ...
以L - 精氨酸 、 L - 甘氨酸、L - 天门氨酸为原料, 采用二环己基碳二亚胺(DCC)法合成了Arg-Gly-Asp ( RGD ).Takintg L - Arginine, L - Glycine and L - Aspartate as a raw material, used DCC coupling method to synthesize Arg - Gly - Asp ( RGD )....