p53基因
参考答案:
人体抑癌基因,在人类各种恶性肿瘤中,近半数都会出现该基因的突变。p53编码一种调节蛋白,可被损伤DNA激活,其功能是阻止DNA损伤的细胞通过G1期的限制点。
he factory ______ its waste into the river, but now it deals with the waste in a new way. [ ]
A. used to dump
B. is used to dump
C. used to dumping
D. is used to dumping
与二进制数01011011对应的十进制数是()。
A.107
B.87
C.91
D.123