题目内容
(请给出正确答案)
[单选题]
__________()
A.A small salad, please
B.What kinds do you have
C.I like dressing a lot
答案
B、What kinds do you have
如果结果不匹配,请 联系老师 获取答案
A.A small salad, please
B.What kinds do you have
C.I like dressing a lot
B、What kinds do you have
A.SMA是一种严重致死致残的单基因隐性遗传病
B.所有人的SMN2基因只有2个拷贝
C.我国SMA致病基因的携带率约为1/50
D.SMA95%的致病原因为SMN1基因发生点突变