骨巨细胞瘤可采用的最佳治疗方法是()
A.放射治疗
B.放射治疗加手术治疗
C.手术治疗
D.化学治疗加手术治疗
参考答案:C
The twins look alike, but they _____ each other in temperament. [ ]
A. different from
B. differ from
C. transform
D. distinguish
实验室内常用的连接外源性DNA载体的酶是()
A.Taq酶
B.T4DNA连接酶
C.DNA聚合酶I
D.DNA聚合酶Ⅱ
E.DNA聚合酶Ⅲ