人类的生殖细胞、体细胞和受精卵各含有染色体数目分别是 [ ]
A.23个、23对、23个
B.46个、46对、46个
C.23个、23对、23对
D.23个、23个、23个
答案:C
—The dictionary is a useful for understanding new words.
—I think so.
A. secret B. tool C. way
The term“before”referring to date of shipment is inclusive of the date mentioned.( )