肺转移瘤中呈小结节及粟粒病变者多见于()
A.肝癌转移
B.胰腺癌转移
C.绒毛膜上皮癌转移
D.成骨肉瘤转移
E.甲状腺癌转移
参考答案:A, B, C, E
To our great _____, his parents were ____ at his remark.
A.surprises;surprised
B.surprises;surprising
C.surprise;surprised
D.surprise;surprising
在绝大多数生物中,遗传信息的传递顺序是[ ]
A.蛋白质→DNA→RNA
B.蛋白质→tRNA→蛋白质
C.DNA→mRNA→蛋白质
D.DNA→tRNA→蛋白质