Will genetic engineering forever change the face of_______.(人类)
查看答案
Would you ________to visit New York or Chicago? (更喜欢,宁愿)
Almost every day scientists________new genes and the traits.(确定,鉴定)
There is a _____ of water .(短缺)
土的粒度成分是指( )。
A. 土颗粒的体积
B. 土颗粒大小的级配
C. 土颗粒的性质
D. 土颗粒的大小